11 Low-Cal Overnight Oats Recipes To Meal Prep For Breakfast

11 Low-Cal Overnight Oats Recipes To Meal Prep For Breakfast

Overnight oats are basically the answer to the “I have no time to eat breakfast” problem. You dump ingredients in a jar, stick it in the fridge, and forget about it until morning. No stovetop, no standing around stirring, no dishes piling up before 7 a.m.

The tricky part is that a lot of overnight oats recipes floating around are secretly calorie bombs, loaded with nut butter, maple syrup, and full-fat everything until a “healthy breakfast” is pushing 600 calories before you’ve even added toppings. That’s not a bad thing if that’s what your day needs, but if you’re trying to keep breakfast lighter without feeling like you’re eating cardboard, you need recipes built with that goal in mind from the start.

That’s what this list is. Eleven overnight oats recipes that land in a reasonable calorie range, taste like something you’d actually want to eat, and hold up well after a few days in the fridge. Each one makes enough for one serving, but they all multiply easily if you want to batch-prep a full week at once.

Why Overnight Oats Work So Well For Meal Prep

Oats absorb liquid slowly overnight, which softens them into a creamy, ready-to-eat texture by morning. That single mechanism is why this breakfast is so meal-prep friendly: there’s no cooking step to schedule around, and the texture actually improves the longer it sits, at least up to about four or five days.

A few things make these recipes lower in calories without making them taste like a punishment:

• Using milk or a milk alternative instead of straight cream or excessive nut butter to keep things creamy without stacking on fat
• Leaning on fruit for natural sweetness rather than dumping in sugar or syrup
• Measuring nut butter and seeds instead of eyeballing them, since these are calorie-dense even in small amounts
• Using Greek yogurt in moderation for protein and creaminess without ballooning the calorie count

None of these recipes rely on artificial sweeteners or diet-food substitutes. They’re just built with reasonable portions and ingredients that pull their weight nutritionally.

Image Prompt: Vertical Pinterest-style overhead photograph of five mason jars filled with different overnight oats recipes lined up on a light wooden countertop, each topped with distinct fruit and toppings like berries, banana slices, and cacao nibs, bright natural morning light streaming in from a window, soft shadows, clean modern kitchen background, realistic food photography, appetizing and fresh, slight steam-free cool tone to suggest chilled breakfast, negative space at the top for text overlay.

How To Meal Prep These Recipes For The Week

Pick a day, usually Sunday, and set aside about twenty minutes. Assemble four to six jars of whichever recipes you like, stagger some flavors so you’re not eating the same thing daily, and refrigerate them all at once.

A few practical notes before you dive in:

• Use mason jars or containers with tight-fitting lids. Anything that seals well works, but wide-mouth mason jars make eating straight from the jar much easier.
• Add crunchy toppings the morning of, not during prep. Granola, nuts, and seeds go soggy if they sit in liquid for four days, so keep them in a separate small container or add them right before eating.
• Most of these keep well for four to five days in the fridge. After that, the texture starts to break down and get a little too soft.
• If a recipe calls for fresh banana, add it the morning you eat it rather than the night you prep, since sliced banana browns and turns mushy fast.

I use stackable glass meal-prep containers for jars like this because they don’t absorb smells the way plastic sometimes does, and you can see exactly what’s inside without opening five lids to find the right one.

11 Low-Cal Overnight Oats Recipes

1. Classic Vanilla Berry Oats

This is the recipe to start with if you’re new to overnight oats. It’s simple, doesn’t require anything unusual, and the berries add natural sweetness so you don’t need added sugar.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk (or any milk you prefer)
• ¼ cup plain nonfat Greek yogurt
• ½ teaspoon vanilla extract
• ½ cup mixed berries (fresh or frozen)
• 1 teaspoon chia seeds (optional, for thickness)

Instructions

1. Add the oats, almond milk, Greek yogurt, and vanilla extract to a jar and stir well.
2. Fold in the chia seeds if using, making sure they’re evenly distributed so they don’t clump.
3. Top with berries, seal the jar, and refrigerate overnight or for at least 6 hours.
4. Stir before eating, and add a splash of milk if it’s thicker than you’d like.

Macros (approximate)
Calories: 240
Protein: 14 g
Carbohydrates: 38 g
Fat: 4 g
Fiber: 8 g

2. Chocolate Banana Protein Oats

This tastes closer to dessert than breakfast, but it’s built with a reasonable calorie count thanks to cocoa powder instead of chocolate syrup.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk
• 1 tablespoon unsweetened cocoa powder
• ½ small banana, mashed
• ¼ cup plain nonfat Greek yogurt
• 1 teaspoon honey (optional)

Instructions

1. Whisk the cocoa powder into the almond milk first so it doesn’t clump later.
2. Stir in the oats, mashed banana, Greek yogurt, and honey if using.
3. Pour into a jar, seal, and refrigerate overnight.
4. Give it a good stir in the morning since cocoa powder can settle at the bottom.

Macros (approximate)
Calories: 260
Protein: 13 g
Carbohydrates: 44 g
Fat: 4 g
Fiber: 7 g

3. Apple Cinnamon Oats

This one leans into fall flavors year-round. Grated apple works into the oats overnight so you get little pockets of sweetness throughout instead of just chunks on top.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk
• ½ small apple, grated
• ½ teaspoon cinnamon
• ¼ cup plain nonfat Greek yogurt
• 1 teaspoon chopped walnuts (optional)

Instructions

1. Combine the oats, almond milk, cinnamon, and Greek yogurt in a jar.
2. Grate the apple directly into the jar, skin and all, for extra fiber.
3. Stir everything together, seal, and refrigerate overnight.
4. Top with chopped walnuts right before eating if you want some crunch.

Macros (approximate)
Calories: 250
Protein: 12 g
Carbohydrates: 42 g
Fat: 5 g
Fiber: 7 g

4. Pumpkin Spice Oats

You don’t need pumpkin spice season as an excuse for this one, but it does hit different in October. Canned pumpkin puree adds fiber and volume without many extra calories.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk
• ¼ cup canned pumpkin puree (not pumpkin pie filling)
• ½ teaspoon pumpkin pie spice
• ¼ cup plain nonfat Greek yogurt
• 1 teaspoon maple syrup

Instructions

1. Mix the pumpkin puree into the almond milk until smooth.
2. Add the oats, pumpkin pie spice, Greek yogurt, and maple syrup, and stir well.
3. Transfer to a jar, seal, and refrigerate overnight.
4. Stir before eating, since pumpkin puree can settle toward the bottom.

Macros (approximate)
Calories: 235
Protein: 12 g
Carbohydrates: 40 g
Fat: 3 g
Fiber: 6 g

Image Prompt: Vertical overhead food photograph of a mason jar filled with pumpkin spice overnight oats, topped with a light dusting of cinnamon and a few pepitas, warm autumn-toned wooden table, small pile of cinnamon sticks and a mini pumpkin nearby for styling, soft warm kitchen light, cozy editorial food-blog photography, natural and appetizing, clean background with negative space near the top.

5. Peanut Butter Banana Oats

This is the one that satisfies a craving without derailing a lower-calorie breakfast, mostly because the peanut butter is measured instead of eyeballed straight from the jar.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk
• 1 tablespoon natural peanut butter
• ½ small banana, sliced
• ¼ cup plain nonfat Greek yogurt

Instructions

1. Warm the peanut butter slightly if it’s stiff, then whisk it into the almond milk until smooth.
2. Stir in the oats and Greek yogurt.
3. Pour into a jar, seal, and refrigerate overnight.
4. Add fresh banana slices the morning you plan to eat it.

Macros (approximate)
Calories: 290
Protein: 15 g
Carbohydrates: 38 g
Fat: 9 g
Fiber: 6 g

6. Strawberry Lemon Oats

Bright and a little tangy, this one works especially well in warmer months. The lemon zest makes a bigger difference than you’d expect for something with almost no calories.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk
• ½ cup sliced strawberries
• Zest of half a lemon
• ¼ cup plain nonfat Greek yogurt
• 1 teaspoon honey

Instructions

1. Combine the oats, almond milk, Greek yogurt, and honey in a jar.
2. Stir in the lemon zest so it distributes evenly rather than clumping in one spot.
3. Top with sliced strawberries, seal, and refrigerate overnight.
4. Stir gently before eating so the strawberries mix through instead of sitting on top.

Macros (approximate)
Calories: 230
Protein: 13 g
Carbohydrates: 36 g
Fat: 3 g
Fiber: 6 g

7. Mocha Oats

For anyone who genuinely can’t function without coffee flavor in the morning, this one folds brewed coffee right into the base.

Ingredients

• ½ cup old-fashioned rolled oats
• ½ cup unsweetened almond milk
• ¼ cup strong brewed coffee, cooled
• 1 tablespoon unsweetened cocoa powder
• ¼ cup plain nonfat Greek yogurt
• 1 teaspoon maple syrup

Instructions

1. Whisk the cocoa powder into the cooled coffee until no lumps remain.
2. Stir in the almond milk, oats, Greek yogurt, and maple syrup.
3. Pour into a jar, seal, and refrigerate overnight.
4. Stir well before eating and add a splash of milk if it’s too thick.

Macros (approximate)
Calories: 220
Protein: 12 g
Carbohydrates: 34 g
Fat: 3 g
Fiber: 6 g

8. Tropical Mango Coconut Oats

This one feels like a vacation breakfast, even though it’s built with pretty ordinary ingredients. Unsweetened coconut flakes add flavor without dumping in a ton of extra fat, as long as you keep the portion small.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk
• ½ cup diced mango (fresh or frozen)
• 1 tablespoon unsweetened shredded coconut
• ¼ cup plain nonfat Greek yogurt

Instructions

1. Combine the oats, almond milk, and Greek yogurt in a jar and stir.
2. Fold in half the diced mango, saving the rest for topping.
3. Sprinkle in the shredded coconut, seal the jar, and refrigerate overnight.
4. Top with the remaining mango before eating.

Macros (approximate)
Calories: 245
Protein: 12 g
Carbohydrates: 38 g
Fat: 5 g
Fiber: 6 g

9. Carrot Cake Oats

This sounds like a dessert trick, but grated carrot genuinely works in oats the same way it does in carrot cake, adding moisture and a subtle sweetness.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk
• ¼ cup grated carrot
• ½ teaspoon cinnamon
• ¼ cup plain nonfat Greek yogurt
• 1 teaspoon chopped walnuts or raisins (optional)

Instructions

1. Stir the oats, almond milk, cinnamon, and Greek yogurt together in a jar.
2. Fold in the grated carrot until it’s evenly distributed.
3. Seal and refrigerate overnight.
4. Top with chopped walnuts or raisins right before eating for texture.

Macros (approximate)
Calories: 245
Protein: 12 g
Carbohydrates: 40 g
Fat: 4 g
Fiber: 6 g

Image Prompt: Vertical overhead photograph of carrot cake overnight oats in a clear glass jar, visible orange flecks of grated carrot throughout, topped with a few chopped walnuts and a light sprinkle of cinnamon, rustic wooden table with a small bundle of fresh carrots and cinnamon sticks placed nearby, warm natural light, editorial food-blog style, realistic and inviting, clean negative space at the top for text.

10. Blueberry Almond Oats

Simple, a little nutty, and easy to keep in rotation because the ingredients are things most people already have on hand.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk
• ½ cup blueberries (fresh or frozen)
• 1 tablespoon sliced almonds
• ¼ cup plain nonfat Greek yogurt
• ¼ teaspoon almond extract (optional)

Instructions

1. Stir together the oats, almond milk, Greek yogurt, and almond extract if using.
2. Fold in half the blueberries, saving the rest for topping.
3. Seal the jar and refrigerate overnight.
4. Top with remaining blueberries and sliced almonds before eating.

Macros (approximate)
Calories: 250
Protein: 12 g
Carbohydrates: 36 g
Fat: 6 g
Fiber: 7 g

11. Piña Colada Oats

The last one on the list, and arguably the most fun. Pineapple and coconut together taste indulgent, but the actual ingredient list is pretty lean.

Ingredients

• ½ cup old-fashioned rolled oats
• ¾ cup unsweetened almond milk
• ½ cup diced pineapple (fresh or canned in juice, drained)
• 1 tablespoon unsweetened shredded coconut
• ¼ cup plain nonfat Greek yogurt

Instructions

1. Combine the oats, almond milk, and Greek yogurt in a jar.
2. Stir in half the pineapple and all the shredded coconut.
3. Seal and refrigerate overnight.
4. Top with the remaining pineapple before eating.

Macros (approximate)
Calories: 240
Protein: 12 g
Carbohydrates: 38 g
Fat: 5 g
Fiber: 5 g

Storage, Substitutions, and Common Questions

How long do these actually keep? Most of these recipes hold up well for four to five days in the fridge. The oats will keep softening slightly the longer they sit, so if you like a firmer texture, eat them closer to the two or three day mark.

Can I use quick oats instead of old-fashioned oats? You can, but they’ll turn out mushier since they’re processed into smaller pieces. If that’s what you have, cut the liquid slightly since quick oats absorb it faster.

What if I don’t have almond milk? Any milk works here, dairy or otherwise. Oat milk, low-fat dairy milk, or soy milk are all fine substitutes and won’t meaningfully change the calorie counts listed.

Can I skip the Greek yogurt? Yes, though it’s doing a lot of the protein lifting in these recipes. If you skip it, add an extra splash of milk to keep the texture from getting too thick, and consider adding a scoop of protein powder if you want to keep the protein count similar.

Can these be frozen? Overnight oats don’t freeze particularly well because the texture gets watery once thawed. It’s better to just prep a fresh batch every four to five days instead.

How do I make these more filling without adding a ton of calories? Chia seeds and extra Greek yogurt are the easiest ways to bump up protein and fiber without much calorie cost. A tablespoon of chia seeds adds about 60 calories but also adds nearly 5 grams of fiber.

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 may help manage cholesterol levels as part of an overall balanced diet.

A Few Practical Meal-Prep Tips

Buy oats in bulk if you’re planning to make this a regular breakfast. A large container of old-fashioned rolled oats is cheaper per serving than smaller boxes and lasts for months in the pantry.

Prep your jars in batches of the same base recipe when you’re short on time, then vary just the fruit or spice on top. It cuts prep time in half without making breakfast boring, since a strawberry version and a blueberry version of the same base still feel different enough day to day.

If you’re someone who forgets to eat breakfast at home, these travel well. Just toss the sealed jar in a bag, and it’ll be fine at room temperature for a couple of hours if you’re eating it by mid-morning.

Wrapping It Up

Eleven recipes is plenty of variety to get through two weeks of breakfasts without repeating yourself, and every one of them keeps calories reasonable without skimping on flavor or making you feel like you’re missing out. Pick two or three that sound good this week, prep a batch on Sunday, and see which ones actually earn a permanent spot in your rotation. The best overnight oats recipe is the one you’ll actually make again, so don’t be afraid to tweak fruit, spices, or sweetness levels until you land on your own version.