This peanut butter banana baked oatmeal is a healthy breakfast recipe for meal prep and busy mornings. Made in under 30 minutes with 10 simple ingredients like oats, bananas, peanut butter, and maple syrup, this peanut butter baked oatmeal is naturally sweetened and packed with protein and fiber.

This peanut butter banana baked oatmeal has been a go-to breakfast recipe for me for many years! It’s easy to make in 30 minutes with a handful of ingredients you probably always keep on hand in your pantry and fridge. It’s packed full of fiber, protein, and healthy fats to keep you full all day long. 

I love keeping slices of this banana peanut butter baked oatmeal in the fridge or freezer for a quick and easy breakfast on busy mornings. If you love oatmeal, also learn how to make oatmeal with lots of flavor combinations or make stovetop peanut butter oatmeal.

Why You’ll Love This Peanut Butter Banana Baked Oatmeal

• Perfect for meal prep breakfasts
• Kids absolutely love it
• Made with healthy ingredients
• Naturally sweetened with banana and maple syrup
• Freezer-friendly
• Gluten-free
• Keeps you full for hours

Peanut Butter Banana Baked Oatmeal: Substitutions 

This recipe is easily customizable to be gluten or dairy free and it’s naturally sweetened. It can be made  peanut-free by subbing your favorite nut or seed butter!

• Quick Cooking Oats: The texture is the best with quick cooking oats. If you only have old-fashioned (or rolled) oats, pulse them 2-3 times in a blender or food processor until they are the same texture as quick-cooking oats and then use them in this recipe.
• Creamy Peanut Butter: Any nut or seed butter works well in this recipe – examples include sunflower seed butter or almond butter. You can also use crunchy peanut butter .
• Maple Syrup: honey is a great substitute.
• Egg: A chia or flax egg (1 Tablespoons ground chia seeds or flaxseed mixed with 2 ½ Tablespoons hot water) can be used in place of a regular egg.
• Milk: I use whole milk, you can use almond milk, coconut milk, 2% milk, even half and half works well.

How to Make Peanut Butter Banana Baked Oatmeal

This recipe is easy to make, as always well walk through the process to ensure your success! Don’t forget to watch the video.

Begin by greasing a 9×9″ baking dish, then set it aside. You can spray it with cooking spray or grease it with butter.

Then, mash the bananas and stir the peanut butter into the bananas.

Next, add the wet ingredients – maple syrup, egg, and vanilla, and stir to combine.

Then, stir in the milk.

Next, add the dry ingredients and stir until everything is well combined.

Recipe Variations

If you want to try new flavor combinations – test these out!

• Chocolate chip peanut butter baked oatmeal: Stir in ½ cup chocolate chips before baking.
• Fruity Banana Baked Oatmeal: Fold 1 cup fresh blueberries, chopped strawberries (think PB&J vibes, etc.) into the batter.
• Protein Baked Oatmeal. Add one scoop vanilla protein powder or collagen protein powder and add an extra 2 Tablespoons milk if needed.
• Peanut Butter Banana Oatmeal Cups Bake the mixture in a muffin pan for 15 to 20 minutes.

Then, pour the batter into the prepared baking dish and bake for 25 minutes, or until the top is set and lightly browned around the edges.

Let the peanut butter baked oatmeal cool slightly before serving.

How to Make Peanut Butter Baked Oatmeal In Advance

I love this baked oatmeal recipe because it’s easy to whip up a batch once and enjoy it all week long. I often double it and bake in a 9×13″ pan for 27 minutes, and then freeze it in individual portions.

Make the entire recipe according to the instructions. Cool to room temperature, cover with foil and store in the refrigerator. In the morning place the covered baked oatmeal in the oven on warm and warm it for 10-15 minutes before serving. 

Cut & Serve

Serve the peanut butter banana baked oatmeal slightly warm with a drizzle of peanut butter and/or pure maple syrup on top!

More Healthy Peanut Butter & Oatmeal Breakfast Recipes

• Stovetop peanut butter oatmeal
• Overnight oats – 6 ways
• Breakfast cookies made with peanut butter and bananas
• Peanut butter overnight oats
• Peanut Butter Banana Smoothie
• Baked Oatmeal Cups

Store

Store leftovers in an airtight container in the refrigerator for up 5 to 7 days.

Freeze

Freeze in individual slices or portions in an airtight container for up to 2 months. Reheat in the microwave or in a covered baking dish in the oven set to warm.

Peanut Butter Banana Baked Oatmeal Recipe FAQs

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