Peanut Butter Banana Baked Oatmeal

4.73 from 40 votes
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This Peanut Butter Banana Baked Oatmeal recipe is one of our most popular breakfast recipes on Fit Foodie Finds! It’s perfectly sweetened with mashed banana and a little bit of maple syrup. It’s also gluten-free and made with ground oat flour and rolled oats!

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baked oatmeal

Featured Comment

“JUST what I needed!!! I feel like I have the same breakfasts over and over and love finding new healthy recipes. THANK YOU! Can’t wait to try! Huge PB and banana lover!” – Christie

This peanut butter baked oatmeal is our family’s all-time favorite breakfast, and we aren’t just saying that🥜 We love making baked oatmeal at the cabin for a large group of people because it’s such an easy breakfast for the masses. People devour it for breakfast, and if there is any left, it’s a sweet treat throughout the day. 

why we love this pb banana baked oatmeal recipe

This particular oatmeal bake recipe is wonderful for so many reasons:

  1. It’s 100% gluten-free! It’s made with rolled oats and ground oat flour. Great for those that can’t gluten or that are allergic.
  2. Oatmeal bakes are just an all-around winning breakfast. They taste like dessert, but are actually good for you!
  3. This peanut butter banana oatmeal baked recipe combines all of my favorite things…peanut butter, banana, and oats. LOLZ.
baked oatmeal

Ingredients Needed for Peanut Butter Banana Baked Oatmeal

  • Banana: We used ripe bananas for this recipe as they’re sweeter than less ripe bananas. They add natural sweetness, moisture, and a wonderful banana flavor to the oatmeal. We mash them up to bind everything together and create a delicious base for the other ingredients.
  • Eggs: They act as a binder, helping the oatmeal hold its shape and giving it a nice fluffiness once baked. 
  • All-natural peanut butter: This creamy goodness is what makes this recipe peanut butter banana! It adds protein, healthy fats, and, of course, that classic peanut butter taste we all love.
  • Vanilla: A splash of vanilla extract is like a magic touch. It enhances all the other flavors in the recipe.
  • Pure maple syrup: This natural sweetener adds a touch of sweetness without being overly processed.
  • Unsweetened almond milk: This is the liquid base that helps cook the oats and keeps everything nice and moist. You can use regular milk too if you’re not avoiding dairy. 
  • Rolled oats: These are the foundation of the oatmeal! They provide a satisfyingly chewy texture and keep you feeling full for longer. We like to use rolled oats because they offer a nice bite compared to quick oats, which can get mushy.
  • Oat flour: This is a fantastic option for a denser and more cake-like oatmeal texture. 

You can’t go wrong with that ingredient list, people. Plus, if you’re sick of overnight oats, baked oatmeal is the PERFECT substitute!

baked oatmeal

Baked Oatmeal Customizations

  • Almond Butter or Cashew Butter: If you’re not a fan of peanut butter or have nut allergies, this recipe is easily adaptable! Almond butter or cashew butter creates a delicious twist.
  • Chocolate Drizzle: Take your oatmeal to the next level with a decadent chocolate drizzle! Melt some dark chocolate, semi-sweet chocolate, or even white chocolate and drizzle it over the top of the baked oatmeal for a decadent touch.
  • Chocolate Chips: Who can resist chocolate chips? Fold in a cup of your favorite chocolate chips (dark, semi-sweet, milk chocolate, or even white chocolate chips) into the batter before baking. They’ll melt into gooey puddles of joy throughout the oatmeal.
  • Drizzle of Peanut Butter: Double down on the peanut butter flavor with a drizzle after baking! Warm up some additional peanut butter (or your chosen nut butter) until it’s pourable, then drizzle it over the baked oatmeal for an extra peanut buttery punch.
  • Non-dairy Milk: This recipe is naturally friendly for those who are lactose intolerant or vegan. Simply replace the almond milk with your favorite non-dairy milk! Coconut milk adds a subtle tropical flavor, while soy milk offers a more neutral taste.

here’s a tip!

Keep an eye on your oatmeal while it bakes. Once a toothpick inserted in the center comes out with a few moist crumbs, it’s done. Overbaking can dry it out.

baked oatmeal

How to Store Peanut Butter Banana Baked Oatmeal

Cover and store for up to 5 days in the fridge. 

Freezer Instructions

Let your baked oatmeal cool completely and then wrap it tightly with a piece of tin foil. Store in the freeze for up to 3 months.


How do I reheat baked oatmeal?

To reheat, cut a slice of baked oatmeal and microwave it for 10-15 seconds or longer, depending on how hot you want it. If you want to reheat the whole thing, I recommend reheating in the oven at 350ºF for around 10 minutes. 

Can I make this recipe ahead of time?

Totally! This recipe is perfect for meal prep as it lasts a full 5 days in the fridge!

Can I freeze baked oatmeal?

Absolutely! Let the baked oatmeal cool completely, then slice it into squares. Wrap the squares individually in plastic wrap or store them in an airtight container in the freezer for up to 3 months. Reheat from frozen in the microwave or oven until warmed through.

Can I turn these into oatmeal cups, instead?

Yes! Fill your muffin tin around 3/4 of the way full. Bake for 18-20 minutes or until fully cooked.

How to Serve Your Baked Oatmeal

I love serving this breakfast on its own with freshly sliced banana and more peanut butter on top. I’ve even had it with a drizzle of honey.

If you’re looking to add more protein: serve it with Sunny Side Up Eggs, Cheesy Sous Vide Egg Bites, or Seriously Easy Microwave Bacon!

4.73 from 40 votes

Peanut Butter Banana Oatmeal Bake

Whip up this easy peanut butter banana baked oatmeal in under an hour! Packed with creamy peanut butter, sweet mashed bananas, and hearty rolled oats, it's a healthy and delicious breakfast or snack.
Prep: 10 minutes
Cook: 40 minutes
Total: 50 minutes
Servings: 4
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  • First, preheat oven to 375ºF and spray a medium-size baking dish or cake pan. I used a but a 9×9-inch cake pan will also work!
  • In a large bowl, mash 1 very ripe banana until liquidy. Then, add in eggs, peanut butter, vanilla extract, maple syrup, and almond milk and mix until smooth. Add rolled oats, flour, baking powder, and salt, and mix until everything is thoroughly combined.
    Person mixing banana baked oatmeal batter in a glass bowl next to a baking tray and fresh bananas on a gray counter.
  • Transfer batter into baking dish and slice a few bananas on top.
    Person placing sliced bananas onto banana baked oatmeal batter in a baking tray, with whole bananas and a cloth in the background.
  • Bake at 375º for about 30-40 minutes (it will depend on the size and depth of your baking dish) or until firm.

Tips & Notes

  • Make ahead instructions: Feel free to make this the night before and let it sit in the fridge until ready to bake in the morning. If you’re planning to add banana slices on top, we recommend waiting to do that until right before baking.

Watch It

[adthrive-in-post-video-player video-id=”YBPSp5xF” upload-date=”2018-07-22T09:00:00.000Z” name=”Peanut Butter Banana Oatmeal Bake” description=”Looking to meal prep the most delicious breakfast on the planet? Make this Peanut Butter Banana Oatmeal Bake and top it with fresh bananas and a drizzle of PB! “]


Calories: 364 kcal, Carbohydrates: 44 g, Protein: 14 g, Fat: 15 g, Fiber: 6 g, Sugar: 11 g

Nutrition information is automatically calculated, so should only be used as an approximation.

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About Lee Funke

Lee is the founder of Fit Foodie Finds and based in Minneapolis, MN. She started this website in 2010 as a way to share her love for real food and wellness. The internet has changed so much since then and so has Fit Foodie Finds. Today we're a female-run recipe website publishing hundreds of tried and true recipes developed and tested by our team.

4.7 28 votes
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December 14, 2022 5:04 pm

This is a great dessert! I added dark chocolate! 😋

October 24, 2022 2:44 pm

Have you tried this recipe with almond butter? I don’t have natural PB at the moment, but still want to try this recipe out!

Angelica Armstrong
June 28, 2022 4:06 pm
Recipe Rating :

2 stars
Unfortunately this recipe lacked flavour I tried before feeding it to my family. Sad to say I won’t be sharing this with them. Shame was so excited to try this ran out & bought the missing ingredients I didn’t have.

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