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Baked Peanut Butter Banana Oatmeal is the perfect make-ahead breakfast, and it’s ideal for families on the go. This ten-ingredient Baked Oats is made with ingredients in your pantry and takes only 35 minutes to bake.

Baked peanut butter banana oatmeal on a plate with bananas and a fork.
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With a few simple tweaks to the recipe, you can easily make Banana Peanut Butter Baked Oatmeal gluten free, vegan or even peanut free by swapping out the peanut butter for your favorite nut or seed butter. Not only that, baked peanut butter oatmeal is healthy, delicious and so easy to make. 

If you love peanut butter and banana, try my Banana Oatmeal Chocolate Chip Cookies, Chocolate Peanut Butter Oatmeal and my Banana Cream Pie Chia Pudding.

Why You’ll Love This Peanut Butter Banana Oatmeal Bake

  • It’s customizable. Easily make this recipe gluten free or vegan. Mix in nuts, seeds, dried fruits or chocolate if desired. 
  • It’s a healthy breakfast option. Baked oats are a great source of complex carbohydrates and soluble fiber. You also get the added protein from the peanut butter and bananas. 
  • It’s perfect for busy families. Easily make this recipe in advance and just reheat individual portions for a quick morning breakfast. It’s also delicious cold or at room temperature. 

Peanut Butter Oatmeal Ingredients

Ingredients needed to make Peanut Butter Banana Baked Oats.
  • Oatmeal: a combination of rolled old-fashioned oats and quick oats give this recipe a delicious texture. 
  • Peanut Butter: mix in melted peanut butter or substitute your favorite nut or seed butter. I prefer creamy as it keeps the texture nice and smooth. 
  • Maple Syrup: feel free to substitute honey or your favorite natural sweetener. 
  • Baking Powder: fresh baking powder is essential to give the baked oatmeal lift. 
  • Cinnamon: Cinnamon adds a hint of warm spice. Omit if preferred.
  • Egg: use one whole egg at room temperature or substitute a flax egg or other egg replacer. 
  • Salt: just a pinch of salt enhances the flavor of all the ingredients. 
  • Bananas: use three small bananas. They do not need to be “old” bananas. Just be sure to mash them well. Use an extra banana to add sliced to the baked oatmeal for serving. 
  • Milk: use regular milk, almond milk or other non-dairy milk as desired. 
  • Vanilla Extract: use vanilla to enhance other flavors in the recipe. 
  • Cooking Spray: Spray the baking dish with cooking spray or line with parchment to easily remove the baked oatmeal. 

How To Make Baked Oatmeal 

  • Prepare the equipment. Preheat oven to 375 F.
  • Combine the wet ingredients. In a bowl, mash up the bananas. Then add in all the wet ingredients: milk, egg, melted peanut butter, and maple syrup.
mix dry and wet ingredients in each bowl
  • Prepare the batter. In another bowl, you can mix all the dry ingredients: rolled oats, cinnamon, quick oats, salt, and baking powder. Or add them directly into the wet ingredients and mix everything together.
mixing the wet ingredients with dry ingredients
  • Bake the oatmeal. Spray a baking dish with some cooking spray and add in the oats mixture. Top with some sliced bananas if desired. Bake in the oven for 35-40 minutes, or until fully cooked, when edges and top are lightly browned.
Place bananas on top of the Baked Peanut Butter Oatmeal.
  • Cool and serve. Remove from the oven and allow to cool for a few minutes before serving. Serve with some maple syrup and more sliced banana or drizzle melted peanut butter if desired. 
Banana Peanut Butter Baked Oatmeal sliced in a serving dish.

Tips To Make Banana Baked Oatmeal 

  • Use a combination of rolled oats and quick oats for a lovely texture.
  • Bring the cold ingredients to room temperature for 15 minutes. 
  • Be sure that the bananas are well mashed.
  • Swap the peanut butter for your favorite nut or seed butter. 
  • Make ahead and reheat for a quick and simple breakfast. 
  • Let the baked oatmeal rest for 5-10 minutes before serving.
  • Drizzle melted peanut butter on top for a flavorful garnish. 
  • Serve with maple syrup and fresh fruit. 
  • Top with slices of banana. 
A slice of baked peanut butter banana oatmeal lifted out of a baking dish.

Frequently Asked Questions

Is baked oatmeal a healthy breakfast?

Although not a low-calorie food, this oatmeal is heart-healthy and packed with xxx grams of fiber and xxx grams of protein. Plus, you get the benefits of the vitamins and minerals found in bananas, so it’s a great addition to a balanced diet when enjoyed in moderation. 

How can I make peanut butter oats vegan-friendly?

This recipe has not been tested with modification, but you can substitute the milk with plant-based milk and use an egg replacement, such as a flax egg, in place of the egg. All of the remaining ingredients are considered gluten-friendly.

How do I store and reheat peanut butter banana baked oats?

This baked peanut butter banana oatmeal can be stored in the fridge for 3 to 4 days, perfect for a make-ahead option. You can reheat the baked oatmeal in the microwave for 30-60 seconds or serve it cold. You can also warm it in a 300 degrees F oven until warmed through. 

Can I freeze baked peanut butter oatmeal?

After cooling completely, wrap tightly and freeze for up to 3 months. Defrost the oatmeal overnight in the fridge and warm individual portions before serving. 

Peanut butter banana baked oatmeal in a dish.

More Baked Oatmeal Recipes

I hope you enjoy all the recipes I share with you, including this delicious Banana Baked Oatmeal recipe. I hope you try it, enjoy it, rate it, and share it with your friends and family!

If you try this recipe and liked it, please leave a star rating and comment below. Use my hashtag to share it with me on Instagram so I can see your delicious recreations! Also, follow me at Cookin’ With Mima on FACEBOOK |INSTAGRAM |PINTEREST for all of my latest social posts and recipes.

5 from 3 votes

Peanut Butter Banana Oatmeal Bake

Baked Peanut Butter Banana Oatmeal is the perfect make-ahead breakfast, and it’s ideal for families on the go. It is made with simple ingredients in your pantry and takes only 35 minutes to bake. Prepare a batch of baked peanut butter oatmeal and slice it into individual servings for an easy grab-and-go breakfast high in fiber and free of refined sugar.
Prep Time: 10 minutes
Cook Time: 35 minutes
Total Time: 45 minutes
Servings: 6 servings

Equipment

  • 10. 5" X 7. 5" Baking Dish

Ingredients 

  • 2 cups rolled old fashion oats
  • 1 cup quick oats
  • ½ cup creamy peanut butter, melted
  • cup maple syrup
  • tsp baking powder
  • ½ tsp cinnamon
  • 1 whole egg
  • tsp salt, a pinch
  • 3 small bananas
  • cup milk
  • 1 tsp vanilla extract, optional
  • non-stick cooking spray
  • sliced banana, optional for topping

Instructions 

  • Preheat oven to 375 F.
  • In a bowl, mash up the bananas. Then add in all the wet ingredients: milk, egg, melted peanut butter, and maple syrup.
  • In another bowl, you can mix all the dry ingredients: rolled oats, cinnamon, quick oats, salt, and baking powder. Or add them directly into the wet ingredients and mix everything together.
  • Spray a baking dish with some cooking spray and add in the oats mixture. Top with some sliced bananas if desired.
  • Bake in the oven for 35-40 minutes, or until fully cooked, when edges and top are lightly browned.
  • Remove from the oven and allow to cool for a few minutes before serving. Serve with some maple syrup and more sliced banana or drizzle melted peanut butter if desired.

Notes

  • Use a combination of rolled oats and quick oats for a lovely texture.
  • Bring the cold ingredients to room temperature for 15 minutes. 
  • Be sure that the bananas are well mashed.
  • Swap the peanut butter for your favorite nut or seed butter. 
  • Make ahead and reheat for a quick and simple breakfast. 
  • Let the baked oatmeal rest for 5-10 minutes before serving.
  • Drizzle melted peanut butter on top for a flavorful garnish. 
  • Serve with maple syrup and fresh fruit. 
  • Top with slices of banana.

Nutrition

Calories: 418kcal | Carbohydrates: 59g | Protein: 14g | Fat: 16g | Saturated Fat: 4g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 7g | Cholesterol: 8mg | Sodium: 288mg | Potassium: 602mg | Fiber: 7g | Sugar: 23g | Vitamin A: 149IU | Vitamin C: 4mg | Calcium: 193mg | Iron: 2mg
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