Chocolate Banana Vegan Baked Oatmeal

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A vegan baked oatmeal recipe that is naturally sweetened, gluten-free, oil-free and only requires 4 ingredients. Freezer-friendly and great for meal prep.

A close up shot of vegan baked oatmeal

Baked oatmeal are one of my go-to when it comes to breakfast. They are warm, healthy and delicious… what more can you ask for ? I always have a batch of them in the freezer for days that I am too busy ( or lazy ) to whip up a full-blown breakfast. It is reassuring to know that I have something to grab and go in the mornings.

A piece of baked oatmeal on a purple plate. There is a fork beside it.

This vegan baked oatmeal recipe is by far, one of the easiest recipe out there ! All you need is an oven, a bowl, 4 ingredients and 40 mins. ( It is more like 10 mins, if the baking time is excluded . ) And I am sure most of you will have all the ingredients needed sitting in your pantry right now. 🙂

And did I mention, they are absolutely DIVINE . Every time I made up a fresh batch, it will be gone within a day. My non-vegan family absolutely love it ! Even my brother, the worst food critic I ever meet, enjoys it.

Ingredients needed for vegan baked oatmeal.

Here are the 4 ingredients ( and list of substitution ) needed for this chocolate vegan baked oatmeal :

  • Ripe bananas – when I say ripe, I meant more like OVERRIPE. Those spotty ones that you are thinking of throwing away ? Use that.
  • Oats – Use gluten-free oats to make it gluten-free. I prefer to use rolled oats, but you can use quick oats if that is what you have.
  • Cocoa powder – Feel free to sub it with cacao powder. Bear in mind though, the flavour will not be as intense and rich as using cocoa powder.
  • Peanut butter – I am using peanut butter as it is what i have on hand, but feel free to use any kinds of nut butter you have. Sub it with sun butter if you are allergy to nuts. Making nut butter is actually very easy ! Here is a how to make nut butter blog post by Minimalist Baker.
an overhead shot of baked oatmeal

Here are some more freezer friendly breakfast recipes to try out :

A few pieces of baked oatmeal arrange randomly on a grey background.
an overhead shot of baked oatmeal

Chocolate Banana Vegan Baked Oatmeal

A vegan baked oatmeal recipe that is naturally sweetened, gluten-free, oil-free and only requires 4 ingredients. Freezer-friendly and great for meal prep.
Prep Time 10 mins
Cook Time 30 mins
Total Time 40 mins
Course Breakfast, brunch, Snack
Cuisine American
Servings 12 squares


  • 3 cups rolled oats*
  • 1/2 cup peanut butter ( or any other nut/seed butter of choice )
  • 1/4 cup cocoa / cacao powder
  • 4 medium banana ( about 400g )
  • pinch of salt ( optional )
  • granulated sugar of choice** ( optional, see notes )


  • Preheat oven to 150 c .
  • In a large bowl, mash the bananas using a fork or potato masher.
  • Add in the peanut butter into the mashed bananas. Combine till well mixed.
  • Add in the rest of the ingredients into the wet ingredients. Mix until the ingredients are well incorporated.
  • Transfer the mixture into a 9×9 greased or lined square pan.
  • Bake it for 25-30 mins, or until a toothpick comes out clean.
  • Let it cool for 10 mins. Slice and serve !


*Use gluten-free oats to make this recipe gluten-free. You can also use quick oats instead.
**If you prefer a sweeter baked oats, I suggest adding 2-4 tablespoons of granulated sugar. 
Baked oatmeal can be stored in the fridge for up to 3 days and in the freezer for 3 months. 
Keyword baked oats, banana, gluten-free, oat bars, oats