Banana Bread Baked Oatmeal

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This banana bread baked oatmeal is studded with walnuts and lightly sweetened with maple syrup. It tastes just like banana bread in oatmeal form and is perfect for meal prep. Vegan + gluten-free.

How have I not thought of this flavor combination before?! I love banana bread and I love baked oatmeal so this is a match made in heaven for me!

A serving of banana bread baked oatmeal on a plate topped with fresh banana slices and walnuts.

Why You Need to Make This Recipe

  • Who doesn’t love banana bread? Get the flavors of banana bread + the nutrients of baked oatmeal for a well-rounded breakfast.
  • It’s made in one bowl! Only one dish to clean? Sign me up.
  • It can be meal prepped for healthy breakfasts all week long or made for a fancy brunch.
Ingredients measured out to make banana bread baked oatmeal: vanilla, cinnamon, salt, baking powder, coconut oil, flaxseed, maple syrup, oats, walnuts, almond milk and bananas.

Here’s What You Need

  • old fashioned rolled oats – my fave brand is Bob’s Red Mill gluten free old fashioned rolled oats.
  • baking powder – helps the baked oatmeal rise. 
  • ground cinnamon – the perfect spice pairing for this baked oatmeal… a necessity for banana bread!
  • sea salt – to bring all of the flavors together.
  • unsweetened almond milk – any dairy-free milk works but I used unsweetened vanilla almond milk. You can make your own following my homemade almond milk recipe.
  • maple syrup – pure maple syrup is the perfect natural sweetener to use for baked oatmeal in my opinion!
  • flaxseed – instead of an egg we’re using ground flaxseed to help bind the dish together. If you only have whole flax you can easily grind them up. Place the whole seeds in a food processor and blend until a gritty flour consistency is reached, about 60 seconds. 
  • coconut oil – make sure you’re using extra virgin coconut oil. I’ve purchased several different brands of coconut oil before, but Nutiva organic extra virgin coconut oil is my favorite.
  • pure vanilla extract – a flavor enhancer.
  • ripe bananas – can’t have banana bread without bananas! You’ll need 4 bananas, 3 of them mashed and 1 of them sliced. Make sure your bananas are ripe!
  • walnuts – I love the addition of walnuts for added healthy fats, texture and flavor. You can swap for a different nut of choice or omit if you’d like.
Collage of six photos showing the steps on how to make banana bread baked oatmeal: spraying the dish, mixing the dry ingredients, adding the wet ingredients and stirring together, pouring the mixture into a dish and topping with banana slices. Baking the oatmeal.

How to Make Baked Oatmeal

Start by prepping a square baking dish with cooking spray or by coating it with coconut oil. In a large bowl, mix together the oats, baking powder, cinnamon and salt. Add in the milk, maple syrup, ground flaxseed, coconut oil, vanilla, mashed bananas and walnuts. Stir well until all of the ingredients are combined. Carefully pour the mixture into the prepared baking dish and top with sliced bananas. Bake at 375ºF for 45-50 minutes. The oatmeal is done when the top is golden brown. Remove from the oven and allow to cool slightly before serving.

An overhead photo looking down on a plate with a serving of banana bread baked oatmeal topped with fresh banana slices. A spoon rests on the plate.

What to Serve with Baked Oatmeal

I find that I either make baked oatmeal for a fancy brunch or just as meal prep for healthy breakfasts all week long! Either way, it could be a meal on its own but if you want to serve it with some sides, here are some ideas that pair well:

How to Store and Reheat

This baked oatmeal is a great meal prep recipe. You can store it in an airtight container in the refrigerator for 4-5 days or in the freezer for up to 3 months. When freezing, I recommend cutting the oatmeal into portions, wrapping each in plastic wrap and placing the portions in a large freezer bag. The individual servings make it easier for reheating. 

To reheat the entire pan of baked oatmeal: cover with foil and reheat in the oven at 350ºF for about 20 minutes or until warm. 

To reheat individual portions: set oven or toaster oven to 350ºF and bake for 5-10 minutes. You can also reheat in the microwave for 1 minute. Once warm, add your toppings and enjoy!

Banana Bread Baked Oatmeal in a baking dish. The oatmeal has been portioned in to 4 servings, with one serving removed from the baking dish and on a plate.

FAQs

Do I need to use the baking powder?

Baking powder is a rising agent and helps lighten the texture of the baked oatmeal. It prevents it from becoming too dense or heavy. That said, if you don’t have baking powder or simply want to skip it, you certainly can. 

What if I don’t have ground flaxseed?

If you don’t need this recipe to be vegan, you can swap the flaxseed for 1 regular egg. You could also use chia seeds or skip the binder altogether. I’ve found that the baked oatmeal still turns just fine without using the egg or flaxseed.

What can I use instead of coconut oil?

You can skip the coconut oil or swap it with another oil, melted butter (or ghee) or even applesauce or more mashed banana.

What can I swap the walnuts with?

  • You can swap for a different nut or seed of choice or omit if you’d like.
  • Can I make baked oatmeal ahead of time?

    Yes, you can totally make baked oatmeal ahead of time. See below for my suggestions on how to prep this recipe in advance.

    Can you swap rolled oats for steel cut oats or quick oats?

    You can use steel cut or quick/instant oats for baked oatmeal, but you need to follow a recipe that calls for those oats because the liquid ratio is different. I do have an apple cinnamon baked steel cut oatmeal recipe I would suggest if you’re looking for a recipe that calls for steel cut oats. 

    Can I add protein powder to baked oatmeal?

    I’ve added a scoop of protein powder without adding in more liquid and it turned out just fine! If you’re adding more than one scoop of protein powder you might want to add more liquid.

    My baked oatmeal turned out soggy. What happened?

    This recipe is a bit soft, but shouldn’t be too soggy. Make sure the mashed bananas aren’t overly ripe or that could add extra liquid. If yours turns out gooey or soggy, you might need to cook it longer.

    Freshly baked banana bread baked oatmeal in a baking dish.

    Can You Make Baked Oatmeal Ahead of Time?

    Yes, you can totally make baked oatmeal ahead of time. There are a couple of options that work really well.

    OPTION 1: BAKE AND THEN REHEAT BEFORE SERVING

    1. Prepare baked oatmeal as the recipe suggests. Once baked, let the oatmeal cool, cover the baking dish and place in the fridge. You can do this 1-2 days in advance. When ready to serve, take oatmeal dish from fridge, cover with foil and reheat in a 350°F oven for about 20 minutes. For individual portions, set toaster oven to 350°F and bake for 5-10 minutes or reheat in the microwave for 1 minute.

    OPTION 2: PREP AS MUCH AS YOU CAN WITHOUT BAKING

    1. Mix together your dry ingredients in a bowl, cover and let sit out on the counter until morning.
    2. Mix together all the wet ingredients in another bowl, cover and store in the fridge until morning.
    3. In the morning, simply mix the wet and dry ingredients together, pour oatmeal mixture into your prepared baking dish and bake as recipe suggests.

    More Baked Oatmeal Recipes

    Be sure to check out all of my baked oatmeal recipes as well as all the popular oatmeal recipes here on EBF.

    Banana Bread Baked Oatmeal

    5 from 12 votes
    This banana bread baked oatmeal is studded with walnuts and lightly sweetened with maple syrup. It tastes just like banana bread in oatmeal form and is perfect for meal prep. Vegan + gluten-free.
    A serving of banana bread baked oatmeal on a plate topped with fresh banana slices and walnuts.
    Prep Time 10 minutes
    Cook Time 45 minutes
    Total Time 55 minutes
    Servings 6

    Ingredients

    • 2 cups old fashioned rolled oats
    • 1 teaspoon baking powder
    • 1 ½ teaspoons ground cinnamon
    • ½ teaspoon fine-grain sea salt
    • 2 cups unsweetened almond milk
    • ¼ cup pure maple syrup, plus more for serving
    • 1 Tablespoon ground flaxseed
    • 2 Tablespoons melted coconut oil
    • 2 teaspoons pure vanilla extract
    • 4 medium bananas, 3 mashed (about 1 ¼ cup) and 1 sliced
    • ½ cup walnuts, chopped and divided
    • cooking spray

    Instructions
     

    • Preheat the oven to 375°F and spray an 8-inch square baking dish with cooking spray.
    • In a large bowl, mix together the oats, baking powder, cinnamon, and salt.
      Oats, baking powder, cinnamon, and salt in a mixing bowl. A hand is using a gold spoon to mix the ingredients.
    • Add in the milk, maple syrup, flaxseed, coconut oil, vanilla, mashed bananas and walnuts. Stir well to combine.
      Milk, maple syrup, flaxseed, coconut oil, vanilla, mashed bananas and walnuts being added to the oat mixture.
    • Carefully pour oatmeal mixture into the prepared baking dish and top with banana slices.
      The banana bread baked oatmeal mixture has been poured into the 8x8 baking dish and a hand is placing slices of banana in a 4x4 pattern.
    • Bake for 45 to 50 minutes, until the top is nicely golden. Remove from the oven and let cool for a few minutes. Portion and serve. Drizzle additional maple syrup on top, if desired and serve.
      Banana bread baked oatmeal in an 8x8 baking dish.

    Nutrition

    Serving: 1/6 of recipe Calories: 330kcal Carbohydrates: 48g Protein: 6g Fat: 14g Saturated Fat: 5g Polyunsaturated Fat: 6g Monounsaturated Fat: 2g Sodium: 340mg Potassium: 396mg Fiber: 6g Sugar: 20g
    Course: Breakast
    Cuisine: American
    Keyword: banana baked oatmeal, banana bread baked oatmeal

    DID YOU MAKE THIS RECIPE?

    Please leave a comment and star rating on this post and share on social media using the hashtag #eatingbirdfood. I love seeing your recipe shares!
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    Recipe Rating




      18 comments
      1. Yummy!
        April 24, 2022 AT 12:17 pm

        5 stars
        It was delish and super easy to make. I didn’t have any flaxseed so I made it without. Will definitely make again.

        1. Brittany Mullins
          April 25, 2022 AT 7:39 am

          Yay! I’m glad this recipe was a hit! Thanks for making it and leaving a review.

      2. Elizabeth
        March 9, 2022 AT 5:06 pm

        5 stars
        This was a huge hit at our house!! Perfect to reheat before work!

        1. Brittany Mullins
          March 10, 2022 AT 8:42 am

          Woo! So glad to hear that, Elizabeth! I love having breakfast ready to go in the mornings, makes things much less stressful. Thanks for sharing and coming back to leave a review, I appreciate it so much!

      3. Susan
        March 6, 2022 AT 10:03 pm

        5 stars
        These were every bit delicious as they looked in your photos. The kitchen smelled amazing as they were baking. Can’t wait to enjoy these all week.

        1. Brittany Mullins
          March 7, 2022 AT 11:16 am

          Yay! I’m so happy to hear that, Susan. Thanks for coming back to leave a review, I really appreciate it.

      4. Dani
        March 2, 2022 AT 10:04 am

        5 stars
        So delicious and filling! I added some dark chocolate chips to it as well and it was a hit!

        1. Brittany Mullins
          March 2, 2022 AT 10:26 am

          Yay! So glad you loved this recipe, Dani. Thanks for leaving a review and star rating, I really appreciate it!

      5. Allison C
        January 30, 2022 AT 9:59 am

        5 stars
        This smelled so good I didn’t even let it cool before I dug in. Just when I thought the sweet potato was my favorite this recipe comes along. I left out the walnuts for the first try just a personal preference. Flavors are just like a banana bread and can’t wait for others to try(if I decide to share), Well done!

        1. Brittany Mullins
          January 31, 2022 AT 11:10 am

          Yay! Happy to hear you enjoyed this oatmeal, Allison. Thanks for trying it out and coming back to leave a review. I really appreciate it!

    4 bowls of oatmeal topped with a variety of fruit, nuts, nut butter, chocolate chips and toppings.

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