Banana Bread Overnight Oats (High-Protein)
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My banana bread overnight oats are for those mornings when you’d happily eat banana bread for breakfast but would rather leave the oven off. Ripe banana, cinnamon, vanilla, and walnuts give these creamy oats that familiar banana-bread flavor, with about 18g protein and 11g fiber when made with dairy milk and protein-rich Greek yogurt. Five minutes of prep tonight, and breakfast is waiting tomorrow.
If you’ve tried my apple pie overnight oats or carrot cake overnight oats, you already know I enjoy turning dessert flavors into breakfast. Banana bread was always going to have its turn! My advice here is the same as for my classic banana bread: use the spotty banana. It mashes more easily, tastes sweeter, and gives you much more flavor than one that’s barely ripe.
Why You’ll Love These Banana Bread Overnight Oats
- Banana bread flavor in every spoonful: Mashed banana flavors the whole jar, while cinnamon, vanilla, and walnuts bring everything together.
- Protein and fiber: Greek yogurt, milk, oats, and chia seeds make this a satisfying breakfast, with no protein powder required.
- No added sweetener needed: I make mine without maple syrup or honey. A ripe banana provides enough sweetness for my taste, and you can adjust yours.
- Five minutes of hands-on prep: Mash, stir, cover, and refrigerate. The banana topping is completely optional.
- An easy use for one leftover banana: Half goes into the oats, and you can use some of the rest for topping—or make a second serving.
Ingredients and Substitutions
- Banana: Use ½ banana, about 60g peeled. A soft banana with plenty of brown spots gives the best sweetness and banana-bread flavor. Mash it well so it blends into the oats.
- Rolled oats: Old-fashioned rolled oats soften overnight while keeping a little texture. Quick oats work but give a softer, more porridge-like result. Steel-cut oats aren’t a direct substitute.
- Chia seeds: These absorb liquid and help create the thick, creamy consistency. They also contribute a substantial share of the fiber.
- Milk: Use dairy milk or your favorite plant-based milk. Dairy milk and soy milk generally provide more protein than almond or oat milk; check the label if protein is a priority.
- Yogurt: I prefer plain Greek yogurt because it adds creaminess and extra protein. Regular plain yogurt also works, but the oats may be looser and lower in protein. Plant-based yogurt is another option.
- Cinnamon: Gives the oats that familiar warm-spice flavor. You can add a small pinch of nutmeg too.
- Vanilla extract: Rounds out the banana and cinnamon. It’s a small addition that makes the oats taste more like something from the baking kitchen.
- Salt: Just a pinch helps balance the sweetness and brings out the other flavors.
- Walnuts/pecans: Add crunch and that classic banana-nut flavor. Stir them in for softer nuts, or save them for serving if you prefer more crunch.
For the complete ingredient list and exact quantities, scroll down to the recipe card. 👇
How to Make Banana Bread Overnight Oats
Step 1: Mash the banana. Add the peeled banana to a jar or container and mash with a fork until mostly smooth. A few small pieces are fine, but mashing thoroughly spreads the flavor throughout the oats.
Step 2: Mix everything together. Add the cinnamon, oats, chia seeds, salt, milk, yogurt, and vanilla. Stir well, reaching right down to the bottom, then mix in the chopped walnuts.
Step 3: Cover and chill. Refrigerate for at least 4 hours, preferably overnight. The oats will soften and the chia seeds will thicken the mixture into a creamy, spoonable breakfast.
Step 4: Top and serve. Stir the chilled oats and add a splash of milk if needed. Finish with fresh banana slices and walnuts, or try the quick golden banana topping below.
Banana Bread Overnight Oats: Video Recipe
Watch the step-by-step video to see how to mix the oats and prepare the optional golden banana topping.
Prefer the written recipe? Scroll down to the recipe card. 👇
The Optional Golden Banana Topping
The oats are ready to eat straight from the fridge, but a few warm banana slices make them feel extra special. Slice some additional banana and cook it in a lightly greased skillet over medium heat for 30–60 seconds per side, until golden. Use a ripe but still firm banana so the slices hold their shape. Spoon them over the oats and finish with walnuts.
A Breakfast with Protein and Fiber
These banana bread overnight oats provide about 18g of protein and 11g of fiber per serving when made with dairy milk and Greek yogurt. The exact amounts vary with your milk, yogurt, and walnut portion.
Greek yogurt and milk supply most of the protein. Oats and chia seeds contribute most of the fiber, while the banana adds natural sweetness. Together, they make a satisfying make-ahead breakfast—and you don’t need protein powder to get the protein estimate above.
For more high-protein breakfast ideas, browse my cottage cheese breakfast recipes. If you’re in the mood for another oat-based breakfast, see my healthy oat recipes for breakfast.
Nutrition estimate is for the recipe made with dairy milk and Greek yogurt. Optional toppings and protein powder are not included.
My Tips for Creamy, Flavorful Overnight Oats
- Choose your banana before choosing your sweetener. A very ripe banana gives you a sweeter jar. Taste the mixed oats before deciding whether to add maple syrup or honey.
- Mash well for banana flavor throughout. Large chunks give you pockets of banana; a smoother mash flavors every spoonful.
- Adjust the consistency after chilling. The mixture will look thinner when you first make it. Wait until the oats and chia have absorbed the liquid before deciding whether it needs more milk.
- Save some walnuts for serving. Nuts soften in the oat mixture overnight. Keeping a few separate gives you a better contrast with the creamy oats.
- Leave room in your container. You want enough space to stir properly and add toppings without breakfast spilling over the edge.
If you’re new to making overnight oats, my complete overnight oats guide covers the base recipe and more flavor combinations.
Control the Sweetness
I don’t add sweetener to this recipe because a ripe banana gives me enough sweetness. These oats are gently sweet, rather than as sweet as a slice of cake.
If your banana is less ripe, your yogurt is particularly tangy, or you simply prefer a sweeter breakfast, start with a small drizzle of maple syrup or honey. Stir, taste, and add more only if needed.
Using sweetened vanilla yogurt or flavored protein powder? Taste before adding any extra sweetener.
Variations and Toppings
- Extra protein: Stir in 1–2 tablespoons of vanilla or unflavored protein powder. Add extra milk as needed because different powders absorb different amounts of liquid.
- Chocolate chip banana bread: Add a small spoonful of chocolate chips or chopped dark chocolate.
- Peanut butter banana: Swirl in a little peanut butter before serving for a richer, nuttier breakfast.
- More warm spice: Add a small pinch of nutmeg alongside the cinnamon. Start lightly so the banana stays the main flavor.
- Vegan or dairy-free: Use plant-based milk and yogurt. Choose protein-rich soy options if you want to retain more protein, and use maple syrup rather than honey if adding sweetener.
- Gluten-free: Use certified gluten-free rolled oats and check any flavored yogurt, protein powder, and toppings.
- Nut-free: Omit the walnuts and choose a suitable milk. Add sunflower or pumpkin seeds if they suit your dietary needs.
Extra toppings and substitutions will change the nutrition.
Storage and Meal Prep
- Refrigerate: Store covered in a jar or airtight container for up to 3–4 days, using fresh milk and yogurt.
- Best texture: Since mashed banana is mixed into the oats, the flavor and texture are best within the first 1–2 days. The banana may darken slightly as it sits.
- Before serving: Stir well. The oats will continue to thicken in the fridge, so loosen them with a splash of milk if needed.
- Meal prep: Double or triple the ingredients, mix in a bowl, then divide among containers.
- Keep toppings separate: Add fresh or pan-browned banana and any walnuts you want to stay crunchy just before serving.
More Banana Bread Inspired Recipes
Still have ripe bananas to use? Here are a few more ways to put them to work:
- Classic Moist Banana Bread — For the days when you want the familiar homemade loaf.
- Cottage Cheese Banana Bread — A moist breakfast loaf made without oil or butter.
- Chocolate Banana Bread — For anyone who enjoys their banana bread with plenty of chocolate.
- Healthy Gluten-Free Banana Bread — A moist, flourless banana bread made with almond flour.
For ideas beyond banana bread, browse my easy overripe banana recipes.
FAQs
Yes, although they’ll be less creamy and lower in protein. Omit the yogurt and start with an additional 2 tablespoons of milk, then adjust after chilling. A thick plant-based yogurt is another option.
The 18g protein estimate applies to the version made with dairy milk and Greek yogurt.
Yes, but the oats will be looser and contain less fiber. Start with a little less milk—about ⅓ cup instead of ½ cup—then add more after chilling if needed.
The original nutrition estimate includes the chia seeds.
Absolutely. Transfer a serving to a microwave-safe bowl and warm gently in short bursts, stirring between them. Add a splash of milk if needed and put your toppings on afterward.
They have the banana, cinnamon, vanilla, and walnut flavors you’d expect from banana bread, with the creamy texture of overnight oats. If you’re craving a soft, baked slice instead, try my healthy banana bread.
More Healthy and Overnight Oats Recipes
Banana Bread Overnight Oats
Ingredients
- ½ medium (60 g) Banana
- ½ teaspoon Cinnamon
- ½ cup (45 g) Rolled oats see notes
- 1 tablespoon (12 g) Chia seeds
- Pinch Salt
- ½ cup (120 ml) Milk any kind *see notes
- ¼ cup (70 g) Yogurt *see notes
- 1 teaspoon Vanilla extract
- 4-5 Walnuts chopped
Instructions
- Mash the banana: Add the banana to a jar or container and mash well with a fork until mostly smooth.
- Make the overnight oats: Add the cinnamon, rolled oats, chia seeds, salt, milk, yogurt, and vanilla extract. Stir well until everything is evenly combined.
- Add the walnuts: Stir in the chopped walnuts, reserving a few for topping if desired.
- Chill: Cover and refrigerate for at least 4 hours, preferably overnight, until the oats are soft and creamy.
- Optional topping: before serving, slice a little extra banana and cook the slices in a lightly greased skillet over medium heat for about 30-60 seconds per side, until golden and lightly caramelized. Spoon over the overnight oats and finish with chopped walnuts.
- Serve: Stir before serving. If the oats are too thick, add a splash of milk or yogurt. Top with extra banana slices and chopped walnuts, if desired.
Video
Notes
- Banana: Use a ripe or very ripe banana for the best sweetness and strongest banana-bread flavor. The riper the banana, the less additional sweetener you may need.
- Sweetener: I didn’t add any sweetener to this recipe because a ripe banana provides plenty of natural sweetness. If your banana isn’t very ripe, or if you prefer sweeter overnight oats, add a little maple syrup, honey, or your favorite sweetener to taste.
- Yogurt: Greek yogurt gives the oats a thicker, creamier texture and adds more protein. Regular plain yogurt also works. If using sweetened or vanilla yogurt, reduce or skip the maple syrup.
- Protein powder: For extra protein, add 1–2 tablespoons of protein powder with the dry ingredients. Vanilla or unflavored protein powder works best. Since protein powder absorbs liquid, you may need to add an extra splash of milk to keep the oats creamy. Different protein powders thicken differently, so adjust the consistency as needed.
- Milk: Dairy milk, almond milk, oat milk, soy milk, or another milk of choice will all work. Add a little extra before serving if the oats become too thick.
- Spices: Cinnamon is enough for a classic banana-bread flavor, but you can also add a pinch of nutmeg or a little extra cinnamon.
- Consistency: Chia seeds thicken the oats as they chill. For thinner overnight oats, stir in extra milk before serving. For thicker oats, slightly reduce the milk.
- Storage: Store covered in the refrigerator for up to 3-4 days. Because the banana is mashed directly into the oats, the flavor and texture are best within the first 1–2 days.
- Meal prep: The recipe can easily be doubled or tripled and divided between jars for several breakfasts.
