This Peanut Butter Banana Baked Oatmeal is a delicious make-ahead or meal prep breakfast recipe! It’s made with 10 nutritious ingredients in 30 minutes & it’s gluten-free.

This Peanut Butter Banana Baked Oatmeal is a delicious make-ahead breakfast perfect for busy mornings. It’s easy to make in 30 minutes with a handful of nutritious ingredients, delivering a generous serving of fiber, protein, and healthy fats to keep you full all day long. 

This peanut butter banana baked oatmeal is also allergy friendly. It’s gluten-free, dairy-free, vegan-friendly and has no refined sugar. It can even be made  peanut-free by subbing your favorite nut or seed butter! Really, this recipe can be all things to all people.

Peanut Butter Banana Baked Oatmeal: Substitutions 

This recipe is very versatile, read below for possible substitutions. Note: make sure the ingredients are room temperature.

• 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.

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.

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.

Prepare 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 and then freeze it in individual portions.

Here’s how to make this peanut butter baked oatmeal in advance.

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 on top!

Store

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

Freeze

I suggest freezing the peanut butter banana baked oatmeal in individual slices. This way, you can easily remove single serving portions from the freezer and reheat as needed.

Reheat in the microwave or oven set to warm.

Banana Baked Oatmeal Recipe FAQs

If you make and love our recipes, it would mean so much to me if you would leave a comment and rating! And don’t forget to follow along with us on Instagram, Pinterest, Facebook, and Youtube – be sure to tag @joyfoodsunshine and use the hashtag #joyfoodsunshine so we can see your creations!

Try these Recipes

Banana Spinach Muffins

Banana Oatmeal Cookies

Healthy Banana Bread

Healthy Greek Yogurt Pancakes

Breakfast Cookies

Peanut Butter Banana Bread