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Energizing, delicious, and full of nutrition! This peanut butter banana baked oatmeal is gluten-free, high in protein (19 grams per serving), dairy-free, and delish!
I know that after you try this recipe, it is going to become your new favorite go-to breakfast.
It’s packed with wholesome oats, creamy peanut butter, and a natural sweetness that comes from ripe bananas. All come together into a delicious baked good that is both indulgent and healthy.
Whether you are a busy professional, a fitness enthusiast, or simply someone who enjoys starting with a hearty breakfast, this recipe is going to be your biggest ally.

This complete breakfast offers everything you need to stay healthy. It has carbs, healthy fats, and is loaded with protein.
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Pin ItThe recipe is the perfect combination of ingredients to provide you with long-lasting energy for hours. Now, there are a couple of tips I have for you to get the most out of this recipe.
Ingredients and Substitutes
WET INGREDIENTS
Ripe bananas (2 medium) – Substitute with unsweetened applesauce or mashed sweet potato if you don’t have (or like) bananas.
Egg (1 medium) – You can replace this with flax egg for a vegan option.
Unsweetened almond milk (1 cup) – To keep this recipe dairy-free, use oat milk, cashew milk, or coconut milk as a replacement.
Crunchy peanut butter (1/2 cup) – Use creamy peanut butter or a nut-free alternative like sunflower seed butter. You can also use other nut butters like cashew butter or almond butter.
Maple syrup (2 tbsp) – Swap with honey, agave, or your favorite sugar substitute.
Vanilla extract (1 tsp)
DRY INGREDIENTS
Rolled oats (2 cups) – Make sure they are certified gluten-free if you want a gluten-free recipe.
Peanut butter powder (4 tbsp) – If you don’t have peanut butter powder, double down on the peanut butter.
Baking powder (1 teaspoon)
Ground cinnamon (1/2 teaspoon) – You can also use nutmeg, cardamon, or pumpkin spice.
Salt (1/4 teaspoon)
TOPPINGS
Banana slices
Peanut butter
How to Make Peanut Butter Banana Baked Oatmeal
Step 1. Preheat your oven to 350F. Grab an 8×8” baking dish and grease it. Add the ripe bananas to the baking dish and mash them with a fork.
Step 2. Add the egg, almond milk, peanut butter, maple syrup, and vanilla extract.
Step 3. Give everything a good mix.
Step 4. Add the dry ingredients.
Step 5. Whisk everything. Grab a spatula and level out the batter.
Step 6. Place in the oven and bake for 20 minutes.
Step 7. Once it’s ready, garnish it with banana slices and peanut butter drizzle.
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How to Modify This Recipe?
Here are some ideas for how you can tweak this recipe.
- Protein Boost: Add a scoop of vanilla protein powder or Greek yogurt.
- Add Some Crunch: Include chia seeds, chopped nuts, or flax seeds.
- Fruity Twist: Add other fruits like blueberries, raspberries, or dried cranberries.
- Make it Chocolatey: If you love chocolate, try adding chocolate chips or cacao nibs.
Tips & Tricks
If you want your recipe to turn out sweet without relying on added sugars, make sure you use very ripe bananas. The riper they are, the sweeter they are going to be.
Another tip I have for you is to make sure you don’t overcook the bake. Make sure it stays soft and moist in the center to avoid a dry recipe.
Storage Tips
This recipe is great for meal prepping. It can be kept in an airtight container in the fridge for up to 5-6 days.
If you want to keep it for longer, cut into single servings and wrap them individually. Place them in a freezer-safe container and freezer for up to 2 months.
When you want to have it again, place a piece in the microwave for 30-40 seconds. But, my favorite option is to use the oven.
Place it at 300F for 10 minutes, and then add a drizzle of peanut to have it as good as new.
Other Oatmeal Breakfast Recipes
- Baked Oatmeal with Chocolate Chips
- Oatmeal Cookie Bars
- Sugar-Free Apple Oatmeal Cookies
- Strawberry Banana Baked Oatmeal
Peanut Butter Banana Baked Oatmeal
12 Cals: 475 Protein: 19 Carbs: 56 Fat: 22
Ingredients
Wet Ingredients
- 2 medium ripe bananas
- 1 medium egg
- 1 cup unsweetened almond milk
- 1/2 cup crunchy peanut butter
- 2 tbsp maple syrup
- 1 tsp vanilla extract
Dry Ingredients
- 2 cups rolled oats
- 4 tbsp peanut butter powder
- 1 teaspoon baking powder
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon salt
Toppings
- Banana slices
- Peanut butter *
Instructions
- Preheat the oven to 350F and prepare a 8×8’’ baking dish.
- Add ripe bananas into the baking dish and mash them with a fork.
- Add cracked egg, almond milk, peanut butter, maple syrup, and vanilla extract. Mix all of the wet ingredients well.
- Add the rest of the dry ingredients into the baking dish and combine.
- Level out the mixture and bake in the oven for 20 minutes.
- Top up with slices of banana and drizzle with peanut butter.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Super easy and delicious! This is my favorite baked oats recipe so far