Baked Banana Oatmeal

baked banana oatmeal in bowl with banana slices and blueberries

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4.9 from 9 reviews

Banana Baked Oatmeal is a recipe everyone needs! A healthy vegan breakfast great for meal prep. No sugar added, easy to make with pantry staples. Try three different flavor varieties: blueberry, walnut, and peanut butter chocolate chip.


Units Scale

Baked Oatmeal Recipe Base

  • 2 medium over-ripe bananas, mashed equal to 3/4 cup (see notes)
  • 1 tablespoon flaxseed meal
  • 2 teaspoon vanilla extract
  • 1 1/2 cups non-dairy milk of choice
  • 2 1/4 cups rolled oats
  • 1/2 teaspoon ground cinnamon
  • 1 teaspoon baking powder
  • 1/4 teaspoon fine sea salt

Walnut Banana Bread

  • 2/3 cup chopped toasted walnuts
  • 1 additional teaspoon ground cinnamon
  • 1/4 teaspoon nutmeg


  • 1 heaping cup fresh or frozen blueberries

Peanut Butter Chocolate Chip

  • 3 tablespoon all-natural creamy peanut butter
  • 1/2 cup chocolate chips (I used Lily’s)


  1. Preheat oven to 375ºF and line an 8×8 or 9×9 pan with parchment paper; set aside.
  2. Mix wet ingredients: In a large bowl mash bananas until only small clumps remain. Add in flaxseed meal, vanilla and milk. Allow to rest for a few minutes.
  3. Add dry ingredients: Add oats, cinnamon, baking powder and salt. Stir to combine. Then add your desired mix-ins.
  4. Bake: Pour oatmeal mixture into prepared pan. Bake for 30-35 minutes, or until edges are golden and middle is set. 
  5. Serve: Allow oatmeal to rest for 30 minutes before serving if you’d like bars. Or feel free to serve with a spoon immediately. Add favorite toppings like nut butter, blueberries, chocolate chips and/or maple syrup


Sugar – I did not include any added sugar in this recipe because I used very brown bananas. The more brown your bananas, the sweeter this baked oatmeal will be. If you’re using unsweetened milk and your bananas are not over ripe, I would suggest adding 2-3 tablespoons of brown sugar to bananas while mashing. OR you could just serve with a little maple syrup. Adjust according to your sweetness preference!

Milk – Feel free to use your choice of milk here. Whether you use cow’s milk,  goat’s milk or a dairy-free alternative. For a richer flavor, you could also do part half & half or canned coconut milk.

Half the recipe – For a smaller batch, cut the ingredients in half, mix as directed and bake in a 8×4 medium loaf pan; 375ºF for 20-25 minutes.

Double the recipe – To feed a crowd, double the ingredients and mix as directed; bake in a 9×13 pan for 25-30 minutes, until edges are golden.

Mix-Ins – Feel free to do a combo of any of these mix-ins as well. For example, blueberries + walnuts. Or blueberries + peanut butter. Or include peanut butter in all three variations. This recipe is a great base – have fun with it!