High Protein Baked Oatmeal

High protein baked oatmeal is the perfect make-ahead vegan breakfast. It’s rich in fiber and protein, which will keep you full all day long.

Kirsten Nunez, MS

By Kirsten Nunez, MS

31 Ratings

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There’s no doubt that oatmeal is nutritious and delicious. But if we’re being honest, the standard bowl of oats can become boring over time. So, why not make a high protein baked oatmeal instead? With ingredients like mashed bananas and maple syrup, this banana bread-like dish is hard to resist.

Besides, protein powder isn’t just for smoothies. It works well in a variety of recipes (like pancakes).

And while it’s easy to mix protein powder into a plain ol’ oatmeal, this option allows you to prepare it in advance. One recipe makes enough for about a week’s worth of breakfast! How’s that for meal prep?

Photo: Kirsten Nunez

How To Make It

First, gather your ingredients. You will need:

  • oats
  • vegan vanilla protein powder
  • flax eggs
  • non-dairy milk
  • bananas
  • vanilla extract
  • cinnamon
  • maple syrup
  • hemp seeds.

You’ll also need an assortment of fruits, like blueberries and sliced strawberries, to garnish the baked oatmeal.

This recipe calls for two flax eggs, which you can make by mixing 2 tablespoons fresh ground flaxseed and 6 tablespoons water. Chill in the refrigerator for 20 minutes to thicken.

Photo: Kirsten Nunez

As for the vegan protein powder? We used KOS Organic Plant Protein in Vanilla. It was our top pick in our hands-on vegan protein review, where we taste-tested popular vegan protein powers. The texture, flavor, and sweetness of this protein powder was spot on.

KOS Organic Plant Protein
Photo: Kirsten Nunez

Now, to make high protein baked oatmeal. Preheat the oven to 350°F and line an 8×8″ baking pan with parchment paper. Combine the oats and protein powder in a bowl.

Photo: Kirsten Nunez

In a larger bowl, mash up the bananas. Do your best to get rid of any chunks.

Photo: Kirsten Nunez

Add the oat-protein mixture, flax eggs, milk, vanilla extract, cinnamon, and maple syrup.

Photo: Kirsten Nunez

Stir well to combine the ingredients.

Photo: Kirsten Nunez

Stir in the hemp seeds, if using. You can also mix in chopped nuts, if you’d like.

Photo: Kirsten Nunez

Transfer the oat mixture into the baking pan. Using a spatula, spread into an even layer.

Photo: Kirsten Nunez

Top the oatmeal with your favorite sliced fruits. Don’t be afraid to get creative and use what you have on hand. For this batch, we used 1/2 cup sliced strawberries, 1/2 cup blueberries, and 1/2 banana. Fruits like peaches and raspberries would be delicious, too.

Optional: Add a handful of nuts or vegan chocolate chips.

Photo: Kirsten Nunez

Bake for 30 minutes, or until golden brown.

Photo: Kirsten Nunez

Let cool 20 to 25 minutes. Slice into squares or rectangles.

Photo: Kirsten Nunez

Serve with maple syrup or coconut flakes. Yum!

Photo: Kirsten Nunez

This baked oatmeal lasts for 5 to 6 days in the refrigerator. (It’s yet another reason why this dish makes for the perfect make-ahead breakfast!) To reheat a slice, simply warm in the microwave. Enjoy with nut butter, vegan butter, or even more fruit.

For more vegan protein goodness, check out our no-bake carrot cake protein bar recipe.

Photo: Kirsten Nunez

So, how would you customize your baked oatmeal? Let us know in the comments, below!

High Protein Baked Oatmeal

High protein baked oatmeal is the perfect make-ahead vegan breakfast. It's rich in fiber and protein, which will keep you full all day long.
Click stars below to rate, or leave a full review in the comments
31 Ratings
Print Rate it Now Pin Recipe
Course: Breakfast
Cuisine: American, Vegan
Keyword: baked oatmeal
Prep Time: 20 minutes
Cook Time: 30 minutes
Rest Time: 20 minutes
Author: Kirsten Nunez, MS


  • 2 bananas
  • 2 cups oats
  • cup vanilla vegan protein powder
  • 2 flax eggs
  • 1 cup non-dairy milk
  • 2 teaspoons vanilla extract
  • 1 ½ teaspoon ground cinnamon
  • ¼ cup maple syrup
  • cup hemp seeds optional


  • ½ cup strawberries sliced
  • ½ cup blueberries
  • ½ banana sliced


  • Preheat the oven to 350°F. Line an 8×8” baking pan with
    parchment paper.
  • In a bowl, combine the oats and protein powder. In a larger
    bowl, mash the bananas, getting rid of any clumps.
  • Add the oat-protein mixture to the mashed bananas. Add the
    flax eggs, milk, cinnamon, vanilla, and maple syrup. Mix until combined. Fold
    in the hemp seeds, if using.
  • Transfer to the baking pan, spreading it into an even layer.
    Top with sliced fruits.
  • Bake for 30 minutes or until golden brown. Let sit for 20 to 25 minutes, then slice. Serve with maple syrup, coconut flakes, or more fruit.
Tried this recipe?Mention @CleanGreenSimple or tag #CleanGreenSimple!

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2 thoughts on “High Protein Baked Oatmeal”

  1. What can I replace with the protein powder, more banana or oat flour maybe ? Just because I don’t have any protein powder :/