Peanut Butter Banana Baked Oatmeal
This Peanut Butter Banana Baked Oatmeal is a healthy, hearty breakfast that’s easy to make and freezer-friendly. Perfect for busy mornings! Get the recipe.
Oats pairs well with Chocolate Peanut Butter Baked Oatmeal and Blueberry Maple Baked Oatmeal too.
Why This Peanut Butter Banana Baked Oatmeal Is So Good
I’ve been making this Peanut Butter Banana Baked Oatmeal on repeat because it’s the best combo of creamy and hearty. The peanut butter melts into the oats, making every bite rich, while the bananas add natural sweetness. It comes together in 15 minutes and bakes while you get ready. Honestly, it’s way better than those instant packets I grew up on.
3 Reasons to Love This Baked Oatmeal
- It’s naturally sweetened with just two tablespoons of honey and ripe bananas, so you get a healthy breakfast without refined sugar.
- The peanut butter adds protein and a creamy texture that makes this feel like a treat.
- You can prep it in one bowl and have warm, filling breakfast ready in under 40 minutes.
Key Ingredients for This Baked Oatmeal
- Old fashioned oats: They provide a chewy, hearty texture that holds up well during baking. Do not substitute with instant oats, which will turn mushy.
- Ripe bananas: The riper the bananas, the sweeter and more flavorful your oatmeal will be. Look for bananas with brown spots on the peel.
- Creamy peanut butter: Natural peanut butter works great; just stir it well before measuring. Crunchy peanut butter is fine too if you like some texture.
Kitchen Tools for Baked Oatmeal
- 8×8-inch baking pan (or 9×13 if doubling)
- Nonstick cooking spray or parchment paper
- Medium and large mixing bowls
- Whisk and spatula
- Potato masher or fork for bananas
Tips for Making the Best Baked Oatmeal
When mashing the bananas, make sure they’re very ripe and almost pudding-like, this ensures even sweetness throughout. Mix the wet and dry ingredients just until the oats are moistened; a few lumps are fine. Let the batter rest for 5 minutes before baking to let the oats absorb liquid, which gives a creamier texture. To test for doneness, touch the center lightly, it should spring back.
Expert Tips for Perfect Texture Every Time
If you want extra creamy baked oatmeal, let the batter sit for 5 minutes before baking. This gives the oats time to absorb some liquid, which helps them cook evenly. For clean squares, let the baked oatmeal cool for 10 minutes before cutting. Use a sharp knife and wipe it clean between cuts. You can also line the pan with parchment paper for easy removal.
How to Prep This Baked Oatmeal Ahead of Time
You can mix the dry ingredients and wet ingredients separately the night before. Store the dry mix in a bag and the wet mix covered in the fridge. In the morning, stir them together and bake. This saves a few minutes. If you want to bake it fully ahead, bake as directed, cool, and refrigerate. Then just reheat a square each morning for a quick breakfast.
Easy Variations to Try
Switch out the peanut butter for almond butter or sunflower seed butter for a different nutty flavor. If you’d rather not use honey, pure maple syrup or brown sugar work just as well. Add a handful of chocolate chips or chopped walnuts to the batter before baking for extra texture. For a dairy-free version, use any milk you like; oat milk adds a nice creaminess too.
How to Serve Peanut Butter Banana Baked Oatmeal
Serve squares warm with extra banana slices and a drizzle of creamy peanut butter and honey. For a lighter topping, add a dollop of plain Greek yogurt and a sprinkle of cinnamon. It’s also great with a splash of cold milk poured over the top, just like you would with regular oatmeal. Pair it with a side of fresh berries for a complete breakfast.
How to Store Leftover Peanut Butter Banana Baked Oatmeal
If you have leftovers, store them in an airtight container in the refrigerator for up to a week. To enjoy, just reheat a square in the microwave or eat it cold. I often make a big batch on Sunday and grab a piece each morning. A splash of milk over the top before reheating brings it back to life.
How to Freeze Baked Oatmeal for Later
Let the baked oatmeal cool completely, then cut it into individual squares. Wrap each square tightly in plastic wrap and place them in a freezer bag or container. They’ll keep for up to 3 months. To serve, unwrap and reheat in the microwave for 1 to 2 minutes, or in a 350°F oven for about 10 minutes. Add a splash of milk if it seems dry.
Best Ways to Reheat Leftover Baked Oatmeal
The quickest way is to microwave a square for 30 to 60 seconds until warm. For a crispier edge, reheat in a toaster oven or regular oven at 350°F for 5 to 7 minutes. I like adding a tiny splash of milk before reheating to keep it moist. You can also eat it cold straight from the fridge, it’s like a chewy oatmeal bar.
Frequently Asked Questions About Baked Oatmeal
Can I use quick oats instead of old fashioned oats?
Quick oats will work but the texture will be much softer and less chewy. Old fashioned oats give this baked oatmeal its signature hearty bite. If you only have quick oats, reduce the baking time by a few minutes and keep an eye on it.
Can I make this recipe vegan?
Yes. Substitute the honey with maple syrup and the egg with a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water, let sit for 5 minutes). Use your favorite plant-based milk. The texture will be slightly different but still delicious.
How do I know when the baked oatmeal is done?
The center should be set and spring back when lightly touched. The edges will be golden brown. If a toothpick inserted in the center comes out clean or with a few moist crumbs, it’s done. Overbaking can dry it out.
Can I double the recipe?
Absolutely. Double all ingredients and bake in a 9×13-inch pan. The baking time may increase by 5 to 10 minutes, so check for doneness at the 25-minute mark.
Can I add protein powder to this recipe?
Yes, but it will change the texture. Add about 1 scoop of your favorite protein powder along with the dry ingredients. You may need to increase the milk by 1 to 2 tablespoons to keep the batter moist.
Recipe
Peanut Butter Banana Baked Oatmeal

Peanut Butter Banana Baked Oatmeal brings two classic flavors together in a hearty and healthy breakfast to keep your family full and energized all day!
Ingredients
- 2 cup old fashioned oats
- 1 tsp baking powder
- 0.5 tsp ground cinnamon
- 0.25 tsp salt
- 2 medium ripe bananas, mashed (about 3/4 cup)
- 0.25 cup creamy peanut butter
- 2 tbsp honey
- 1 large egg
- 1 cup vanilla unsweetened almond milk
- 1 tsp vanilla extract
- banana slices, peanut butter, and honey, for serving, optional
Instructions
- 1
Preheat oven to 350 degrees F. Grease a 8x8-inch baking pan with nonstick cooking spray and set aside.
- 2
In a medium bowl, combine oats, baking powder, cinnamon and salt. Set aside.
- 3
In a large bowl, combine the mashed banana and peanut. Stir until smooth. Add in the honey, egg, milk, and vanilla extract. Stir until well combined.
- 4
Add the dry ingredients to the wet ingredients and stir. Pour the oatmeal mixture into the prepared pan.
- 5
Bake for 23-25 minutes or until the oatmeal is set or until the oatmeal springs back when lightly touched and is slightly golden brown around the edges.
- 6
Remove from the oven and cut into squares. Serve warm with banana slices and a drizzle of peanut butter and honey, if desired.
Nutrition (per serving)
Calorie breakdown
How this was calculated — 11 of 11 ingredients matched
Nutrition information is automatically calculated from USDA FoodData Central, so should only be used as an approximation. Actual values may vary depending on the ingredients, brands, and preparation methods used.
Open in analyzerKeyword: easy, Oven Baked, vegetarian
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NutriforksNutriForks is a home-cooking site built around two simple ideas: recipes should actually work, and you should know what’s in them. Every recipe pairs clear, tested instructions with a full nutrition breakdown, so healthy, everyday cooking is genuinely easy.







