21 Low-Calorie Overnight Oats Recipes

21 Low-Calorie Overnight Oats Recipes

Overnight oats solve a very specific problem: you want breakfast to be ready before you’re actually awake enough to make it. No stirring a pot, no standing at the stove, no dishes piling up before 7 a.m. You mix everything in a jar the night before, put it in the fridge, and by morning it’s thick, creamy, and ready to eat cold or warmed up, whichever you’re in the mood for.

The tricky part is that a lot of overnight oats recipes floating around online lean heavy on nut butter, maple syrup, and full-fat everything, which is fine occasionally but not exactly what you want if you’re trying to keep breakfast in a lower-calorie range without feeling like you’re eating cardboard. These 21 recipes stay in a reasonable calorie window (mostly 200–320 calories per serving) while still tasting like something you’d actually want to eat five mornings a week.

I’ve grouped them loosely by flavor profile so it’s easier to find what sounds good, but honestly, most of these swap fruits and toppings pretty easily if you want to mix and match based on what’s in your kitchen.

Why Overnight Oats Work So Well for Low-Calorie Breakfasts

Oats themselves aren’t a diet food or a “bad” food — they’re just a whole grain that happens to be filling, cheap, and easy to portion. The reason overnight oats fit well into a lower-calorie routine comes down to a few practical things.

First, rolled oats soaked in liquid roughly double in volume, so a half-cup of dry oats turns into a satisfying bowl without piling on calories the way a half-cup of granola would. Second, using milk or a milk alternative plus a protein source like Greek yogurt or protein powder means you’re getting a meal that actually holds you over, rather than one that leaves you hungry by 10 a.m. And third, because you’re portioning everything the night before, there’s no eyeballing servings while half-asleep and accidentally pouring yourself a mountain of oats.

According to the Harvard T.H. Chan School of Public Health, oats are a good source of soluble fiber, which can support healthy digestion and help you feel fuller for longer. That fiber factor is a big part of why these recipes work as a genuinely satisfying breakfast rather than just a low-calorie one.

Image Prompt: Vertical Pinterest-style overhead photograph of five mason jars filled with different overnight oats varieties lined up on a light wooden countertop, each topped with distinct fruit like berries, banana slices, and chopped nuts, soft morning window light from the left, small linen napkin and a spoon resting beside the jars, bright airy kitchen background slightly blurred, natural color palette, clean negative space at the top for text overlay.

A Few Quick Notes Before You Start

A basic ratio to keep in your back pocket: ½ cup rolled oats to ½ to ¾ cup liquid, adjusted depending on how thick you like the final texture. Old-fashioned rolled oats work best texturally — quick oats can turn a little mushy, and steel-cut oats stay too firm unless soaked much longer.

Most of these recipes keep well in the fridge for 3 to 4 days, so doubling or tripling a batch on Sunday is a completely reasonable way to handle weekday breakfasts. Just store them in individual jars or containers so you’re not fighting with one giant tub every morning.

If a recipe calls for chia seeds and you’re out, ground flaxseed is a reasonable substitute, though the texture will be slightly less gel-like. And if dairy isn’t your thing, unsweetened almond milk, oat milk, or soy milk all work fine in place of regular milk — just know that plant milks with less protein will lower the protein count slightly, so you may want to add an extra spoonful of yogurt or protein powder to compensate.

I use stackable glass meal-prep containers for batches like this because they stack neatly in the fridge and don’t hold onto smells the way some plastic containers do, which matters more than you’d think when you’re storing five different oat flavors at once.

21 Low-Calorie Overnight Oats Recipes

1. Classic Vanilla Berry Oats

This is the one to start with if you’re new to overnight oats. It’s simple, not too sweet, and works as a base you can build on later.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ¼ cup plain Greek yogurt
• ½ teaspoon vanilla extract
• ½ cup mixed berries (fresh or frozen)
• 1 teaspoon honey (optional)

Instructions

1. Combine oats, almond milk, Greek yogurt, and vanilla extract in a jar or container.
2. Stir well until the oats are fully coated.
3. Add honey if using and stir again.
4. Cover and refrigerate overnight, or at least 4 hours.
5. Top with fresh berries before eating.

Macros
Calories: approximately 260
Protein: approximately 12 g
Carbohydrates: approximately 42 g
Fat: approximately 5 g
Fiber: approximately 7 g

2. Chocolate Banana Oats

Tastes like dessert, works like breakfast. The banana adds natural sweetness so you don’t need much added sugar.

Ingredients

• ½ cup rolled oats
• ¾ cup unsweetened almond milk
• 1 tablespoon unsweetened cocoa powder
• ½ small banana, mashed
• 1 teaspoon maple syrup

Instructions

1. Whisk the cocoa powder into the almond milk until it’s smooth with no clumps.
2. Stir in oats, mashed banana, and maple syrup.
3. Cover and refrigerate for at least 4 hours or overnight.
4. Stir before serving and top with banana slices if you’d like.

Macros
Calories: approximately 245
Protein: approximately 8 g
Carbohydrates: approximately 46 g
Fat: approximately 4 g
Fiber: approximately 8 g

3. Apple Cinnamon Oats

This one tastes like fall no matter what month it actually is.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ¼ cup unsweetened applesauce
• ½ teaspoon cinnamon
• ¼ small apple, diced

Instructions

1. Mix oats, almond milk, applesauce, and cinnamon in a jar.
2. Fold in the diced apple.
3. Cover and refrigerate overnight.
4. Top with a few extra apple slices and a pinch of cinnamon before eating.

Macros
Calories: approximately 230
Protein: approximately 7 g
Carbohydrates: approximately 44 g
Fat: approximately 3 g
Fiber: approximately 7 g

4. Peanut Butter Banana Oats

A little more filling than the others thanks to the peanut butter, so this is a good one for busy mornings when lunch might be delayed.

Ingredients

• ½ cup rolled oats
• ¾ cup unsweetened almond milk
• 1 tablespoon natural peanut butter
• ½ small banana, sliced

Instructions

1. Stir peanut butter into the almond milk until mostly smooth (a few small lumps are fine).
2. Add oats and stir to combine.
3. Cover and refrigerate overnight.
4. Top with banana slices in the morning.

Macros
Calories: approximately 300
Protein: approximately 10 g
Carbohydrates: approximately 40 g
Fat: approximately 11 g
Fiber: approximately 7 g

5. Strawberry Shortcake Oats

This tastes far more indulgent than the calorie count suggests, which is basically the whole point of this list.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ¼ cup plain Greek yogurt
• ½ teaspoon vanilla extract
• ½ cup diced strawberries

Instructions

1. Combine oats, almond milk, yogurt, and vanilla in a jar.
2. Stir until well mixed.
3. Cover and refrigerate overnight.
4. Top with diced strawberries just before eating.

Macros
Calories: approximately 255
Protein: approximately 12 g
Carbohydrates: approximately 40 g
Fat: approximately 5 g
Fiber: approximately 6 g

6. Pumpkin Spice Oats

You don’t need pumpkin spice season to justify this one.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ¼ cup canned pumpkin puree
• ½ teaspoon pumpkin pie spice
• 1 teaspoon maple syrup

Instructions

1. Whisk pumpkin puree into almond milk until smooth.
2. Stir in oats, pumpkin pie spice, and maple syrup.
3. Cover and refrigerate overnight.
4. Top with a light sprinkle of cinnamon before serving.

Macros
Calories: approximately 220
Protein: approximately 7 g
Carbohydrates: approximately 40 g
Fat: approximately 3 g
Fiber: approximately 7 g

7. Mocha Overnight Oats

A genuinely good option if you’re the type of person who needs coffee flavor in everything, breakfast included.

Ingredients

• ½ cup rolled oats
• ½ cup brewed coffee, cooled
• ¼ cup unsweetened almond milk
• 1 tablespoon unsweetened cocoa powder
• 1 teaspoon maple syrup

Instructions

1. Whisk cocoa powder into the cooled coffee and almond milk.
2. Stir in oats and maple syrup.
3. Cover and refrigerate overnight.
4. Stir well before eating, since cocoa can settle.

Macros
Calories: approximately 210
Protein: approximately 6 g
Carbohydrates: approximately 38 g
Fat: approximately 3 g
Fiber: approximately 7 g

8. Blueberry Lemon Oats

Bright and a little tangy, which makes it feel lighter than most of the other flavors on this list.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ¼ cup plain Greek yogurt
• Zest of ½ lemon
• ½ cup blueberries

Instructions

1. Combine oats, almond milk, yogurt, and lemon zest in a jar.
2. Stir well.
3. Fold in half the blueberries.
4. Cover and refrigerate overnight, then top with remaining blueberries before serving.

Macros
Calories: approximately 250
Protein: approximately 12 g
Carbohydrates: approximately 40 g
Fat: approximately 4 g
Fiber: approximately 6 g

9. Carrot Cake Oats

Sounds unusual until you try it, then it makes complete sense.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ¼ cup grated carrot
• ½ teaspoon cinnamon
• 1 tablespoon chopped walnuts

Instructions

1. Stir oats, almond milk, grated carrot, and cinnamon together in a jar.
2. Cover and refrigerate overnight.
3. Top with chopped walnuts before eating.

Macros
Calories: approximately 250
Protein: approximately 7 g
Carbohydrates: approximately 38 g
Fat: approximately 8 g
Fiber: approximately 6 g

10. Tropical Mango Coconut Oats

A little vacation in a jar, minus the actual vacation.

Ingredients

• ½ cup rolled oats
• ½ cup light coconut milk
• ¼ cup unsweetened almond milk
• ½ cup diced mango

Instructions

1. Combine oats with coconut milk and almond milk in a jar.
2. Stir well.
3. Cover and refrigerate overnight.
4. Top with diced mango before serving.

Macros
Calories: approximately 265
Protein: approximately 6 g
Carbohydrates: approximately 43 g
Fat: approximately 8 g
Fiber: approximately 6 g

Image Prompt: Vertical Pinterest-style overhead photograph of tropical mango coconut overnight oats in a clear glass jar, diced golden mango and shredded coconut visible on top, bright natural daylight, white marble surface, a few whole mangoes and a small coconut half placed beside the jar, fresh and vibrant color palette, editorial food-blog styling, light airy atmosphere.

11. Almond Cherry Oats

The combination of almond and cherry is a little unexpected, but it works really well together.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ¼ teaspoon almond extract
• ½ cup pitted, halved cherries
• 1 tablespoon sliced almonds

Instructions

1. Stir oats, almond milk, and almond extract together in a jar.
2. Cover and refrigerate overnight.
3. Top with cherries and sliced almonds before serving.

Macros
Calories: approximately 255
Protein: approximately 7 g
Carbohydrates: approximately 40 g
Fat: approximately 7 g
Fiber: approximately 6 g

12. Raspberry Chia Oats

Chia seeds add a nice pop of texture and a bit of extra fiber without changing the flavor much.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• 1 tablespoon chia seeds
• ½ cup raspberries

Instructions

1. Combine oats, almond milk, and chia seeds in a jar and stir well.
2. Let sit for 5 minutes, then stir again to prevent clumping.
3. Cover and refrigerate overnight.
4. Top with fresh raspberries before eating.

Macros
Calories: approximately 235
Protein: approximately 7 g
Carbohydrates: approximately 38 g
Fat: approximately 6 g
Fiber: approximately 10 g

13. Maple Pecan Oats

A slightly nutty, cozy flavor that works well any time of year.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• 1 teaspoon maple syrup
• 1 tablespoon chopped pecans

Instructions

1. Stir oats, almond milk, and maple syrup together in a jar.
2. Cover and refrigerate overnight.
3. Top with chopped pecans before serving.

Macros
Calories: approximately 260
Protein: approximately 6 g
Carbohydrates: approximately 36 g
Fat: approximately 9 g
Fiber: approximately 6 g

14. Peach Vanilla Oats

Best made in summer when peaches are actually in season, though frozen peaches work fine the rest of the year.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ¼ cup plain Greek yogurt
• ½ teaspoon vanilla extract
• ½ cup diced peach

Instructions

1. Combine oats, almond milk, yogurt, and vanilla in a jar.
2. Stir well.
3. Cover and refrigerate overnight.
4. Top with diced peach before serving.

Macros
Calories: approximately 255
Protein: approximately 12 g
Carbohydrates: approximately 40 g
Fat: approximately 4 g
Fiber: approximately 5 g

15. Espresso Chocolate Chip Oats

A small amount of mini chocolate chips goes a long way here, so there’s no need to overdo it.

Ingredients

• ½ cup rolled oats
• ½ cup brewed espresso or strong coffee, cooled
• ¼ cup unsweetened almond milk
• 1 tablespoon mini chocolate chips

Instructions

1. Combine oats, cooled espresso, and almond milk in a jar.
2. Stir in chocolate chips.
3. Cover and refrigerate overnight.
4. Stir before eating.

Macros
Calories: approximately 240
Protein: approximately 6 g
Carbohydrates: approximately 38 g
Fat: approximately 6 g
Fiber: approximately 6 g

16. Pineapple Coconut Oats

Similar to the mango version but with a slightly tangier edge from the pineapple.

Ingredients

• ½ cup rolled oats
• ½ cup light coconut milk
• ¼ cup unsweetened almond milk
• ½ cup diced pineapple

Instructions

1. Stir oats with coconut milk and almond milk in a jar.
2. Cover and refrigerate overnight.
3. Top with diced pineapple before serving.

Macros
Calories: approximately 260
Protein: approximately 6 g
Carbohydrates: approximately 42 g
Fat: approximately 7 g
Fiber: approximately 5 g

17. Banana Bread Oats

Tastes remarkably close to actual banana bread, minus the butter and sugar that usually comes with it.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ½ small banana, mashed
• ¼ teaspoon cinnamon
• 1 tablespoon chopped walnuts

Instructions

1. Combine oats, almond milk, mashed banana, and cinnamon in a jar.
2. Stir well.
3. Cover and refrigerate overnight.
4. Top with chopped walnuts before serving.

Macros
Calories: approximately 260
Protein: approximately 7 g
Carbohydrates: approximately 42 g
Fat: approximately 7 g
Fiber: approximately 7 g

18. Lemon Poppy Seed Oats

Light, a little tart, and a nice change of pace from the sweeter flavors on this list.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• ¼ cup plain Greek yogurt
• Zest and juice of ½ lemon
• 1 teaspoon poppy seeds

Instructions

1. Combine oats, almond milk, yogurt, lemon zest, and lemon juice in a jar.
2. Stir in poppy seeds.
3. Cover and refrigerate overnight.
4. Stir before eating; top with extra lemon zest if you’d like.

Macros
Calories: approximately 245
Protein: approximately 12 g
Carbohydrates: approximately 36 g
Fat: approximately 5 g
Fiber: approximately 6 g

19. Fig and Honey Oats

A slightly more grown-up flavor that works especially well in the fall when fresh figs show up at the market.

Ingredients

• ½ cup rolled oats
• ⅔ cup unsweetened almond milk
• 2 fresh figs, quartered
• 1 teaspoon honey

Instructions

1. Combine oats and almond milk in a jar and stir well.
2. Cover and refrigerate overnight.
3. Top with quartered figs and a drizzle of honey before serving.

Macros
Calories: approximately 245
Protein: approximately 6 g
Carbohydrates: approximately 44 g
Fat: approximately 3 g
Fiber: approximately 7 g

20. Matcha Coconut Oats

For anyone who likes their breakfast a little different from the usual berry-and-banana routine.

Ingredients

• ½ cup rolled oats
• ½ cup light coconut milk
• ¼ cup unsweetened almond milk
• ½ teaspoon matcha powder
• 1 teaspoon honey

Instructions

1. Whisk matcha powder into the almond milk until it’s mostly smooth.
2. Stir in oats, coconut milk, and honey.
3. Cover and refrigerate overnight.
4. Stir well before eating.

Macros
Calories: approximately 255
Protein: approximately 6 g
Carbohydrates: approximately 38 g
Fat: approximately 8 g
Fiber: approximately 5 g

21. Protein Powder Vanilla Oats

The highest-protein option on this list, which makes it a solid choice for mornings before a workout or just when you want breakfast to hold you over longer.

Ingredients

• ½ cup rolled oats
• ¾ cup unsweetened almond milk
• 1 scoop vanilla protein powder
• ½ teaspoon cinnamon
• ½ cup sliced strawberries

Instructions

1. Whisk protein powder into the almond milk until fully dissolved and no clumps remain.
2. Stir in oats and cinnamon.
3. Cover and refrigerate overnight.
4. Top with sliced strawberries before serving.

Macros
Calories: approximately 290
Protein: approximately 22 g
Carbohydrates: approximately 38 g
Fat: approximately 4 g
Fiber: approximately 6 g

Image Prompt: Vertical Pinterest-style overhead photograph of a protein vanilla overnight oats jar topped with fresh sliced strawberries and a light dusting of cinnamon, set on a rustic wooden table, morning sunlight streaming in from the side, a small scoop of protein powder and a spoon resting nearby, warm cozy kitchen atmosphere, realistic and appetizing food photography, soft shadows, clean composition with space for text.

Storage, Meal Prep, and Substitution Tips

A few practical things worth knowing before you start batching these.

Storage: Most overnight oats keep well in the fridge for 3 to 4 days in a sealed container. Fruits like banana and apple can brown slightly by day 3, so if you’re prepping ahead, it helps to add those toppings fresh each morning rather than mixing them in from the start.

Meal prep: Sunday is the obvious day to batch several jars at once, but there’s no rule saying you have to make the same flavor five times. IMO, prepping three or four different flavors in one sitting keeps things interesting without adding much extra time, since the base method is identical across every recipe.

Freezing: Oats themselves freeze reasonably well for up to a month, though the texture softens more than you might like after thawing. If you want to freeze ahead, it’s usually better to freeze just the dry oats and chia portions premeasured in bags, then add the milk and fruit fresh.

Portion adjustments: If 250 to 300 calories feels too light for your morning, adding a tablespoon of nut butter or a scoop of protein powder is an easy way to bump up both calories and staying power without changing the flavor much.

Ingredient swaps: Not a fan of almond milk? Regular skim milk, oat milk, or soy milk all work as direct substitutes, just double check the calorie count on the carton since they vary more than you’d expect.

If you’re looking for something to round out the rest of your morning routine, a lot of these pair well with the same lower-calorie approach used in this collection of quick breakfast ideas.

A Quick Word on Nutrition Numbers

All the macros listed above are approximate estimates based on standard ingredient brands and typical portion sizes. Actual numbers will shift depending on the specific brands you use, how you measure ingredients, and any substitutions you make. If you’re tracking macros closely for a specific health goal, it’s worth running your exact ingredients through a nutrition calculator or checking with a registered dietitian, especially if you’re managing a condition where precise numbers matter. The USDA FoodData Central database is a solid free resource if you want to double-check specific ingredient values.

Final Thoughts

Twenty-one recipes is enough to get through three full weeks without repeating a single breakfast, which is honestly more variety than most people bother with on a regular Tuesday morning. Pick two or three that sound good, prep a batch this weekend, and see which ones actually earn a permanent spot in your rotation. The beauty of overnight oats is that once you’ve got the base method down, swapping flavors is just a matter of changing what’s in the fridge — so don’t be afraid to experiment beyond this list once you find your favorites.