Meet your new favorite breakfast with 17 grams of protein. Serve up a slice of this nourishing protein baked oatmeal with berries and nut butter, and stay full all morning long. You’ll also love my peanut butter baked oats, chocolate baked oats, and lemon blueberry baked oats.

Protein baked oatmeal in a pan with peanut butter and fresh berries.

Cara’s 5-star review ⭐️ “THESE ARE SO YUMMY! 10/10! I love how it’s protein packed too!”

Sweet And Protein-Packed Breakfast

As a dietitian, these protein baked oats are a staple in my house because they make breakfast easy and keep me full for hours. Here’s why you’ll love them too:

  1. Packed with protein. Oats are well known for their fiber content, but they’re not exactly packed with protein. This recipe turns oats into a balanced and filling breakfast with extra protein and nutritional balance.
  2. Perfect for meal prep. Make a batch on Sunday, store the slices in the fridge, and add your favorite toppings each morning for a 5-minute breakfast that actually supports your health.
  3. Easy to customize. I designed these baked oats with a simple but satisfying vanilla flavor that works well with endless toppings. Add your favorite fruit, nut butter, or yogurt to switch up the flavor each day.

Dietitian tip! 💡 Oats are packed with beta-glucan fiber that may support heart health. Explore more tasty recipes with oats like my oatmeal pumpkin muffins, no-bake trail mix bars, or cookie dough protein balls.

Key Ingredient Notes

Ingredients for protein baked oatmeal displayed in small bowls on a white kitchen counter.
  • Vanilla whey protein powder: I use the Leanfit Vanilla Whey protein powder in baking because I like the taste and texture, but use what you have and love.
  • Greek yogurt: Make sure to use plain yogurt and not vanilla or other sweetened options. This recipe also works with blended cottage cheese instead of yogurt – but I recommend using half the salt if you make this swap.
  • Maple syrup: My protein baked oatmeal is entirely sweetened with maple syrup. Swap honey if needed.

Scroll down to the recipe card for the full ingredients list and detailed recipe.

How To Make Protein Baked Oatmeal

Wet ingredients for protein baked oatmeal being whisked in a large mixing bowl.

Step 1: Whisk wet ingredients until smooth.

Batter for protein baked oats in a large mixing bowl.

Step 2: Stir in dry ingredients.

Raw protein baked oatmeal in a baking pan.

Step 3: Transfer to a parchment-lined baking pan.

Cooked protein baked oatmeal in a baking pan.

Step 4: Bake, cool, and slice!

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Tips From My Test Kitchen

  1. Don’t use too much protein powder. I recommend spooning and levelling your protein powder when measuring to avoid using too much. This will help prevent dry and chalky oats.
  2. Let them cool before storing. If you pack your baked oats warm, they’ll get a little wet and soggy in the container. Let them completely cool to room temperature first.

PS. I’m committed to sharing the best possible recipes and learning from reader feedback. This recipe has been re-tested and perfected since it was originally posted in 2024.

Common Questions

What toppings can I add to my protein baked oatmeal?

For a boost of protein, add a scoop of Greek yogurt or nut butter on top. You can also sprinkle with whole nuts or seeds. For extra fiber, sprinkle your baked oatmeal with fresh berries. For a little extra fun and flavor, drizzle with honey, maple syrup, or your favorite jam.

How should I store protein baked oatmeal?

Let your oats completely cool to room temperature. Slice and store in a food container in the fridge or freezer. To freeze, wrap each slice individually in plastic wrap or parchment paper. De-frost each slice in the fridge overnight before serving. To refrigerate, keep slices stored in a food container and eat them right from the fridge. You can also microwave for 20-30 seconds to enjoy warm. Add toppings right before eating.

How long will these stay good in the fridge or freezer?

They’ll stay good in the fridge for up to four days, or the freezer for up to three months.

Can I swap the Greek yogurt for cottage cheese?

Yes! Blended cottage cheese and Greek yogurt both work great, and both have been tested. If you’d prefer to use blended cottage cheese, reduce the salt to 1/4 teaspoon.

protein baked oatmeal on a white plate with fresh berries.

More High Protein Breakfasts

Need more filling high-protein breakfast ideas? Here are some of my favorites:

If you tried this recipe for protein baked oatmeal, leave a ⭐️ star-rating below and share your picture on Instagram!

4.96 from 22 votes

Protein Baked Oatmeal

Your new favorite breakfast with 17 grams of protein. Serve up a slice of this sweet and satisfying protein baked oatmeal and stay full for hours.
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Yield: 6 squares

Equipment

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Ingredients 

Instructions 

  • Position oven rack to the middle and pre-heat to 350 F. Line a 9×9-inch baking pan with parchment paper and set aside.
  • To your large mixing bowl, add eggs, milk, Greek yogurt, olive oil, maple syrup, and vanilla extract. Whisk until smooth.
  • To the same bowl, add oats, protein powder, baking powder, cinnamon, and salt. Mix until combined.
  • Pour batter into your prepared baking pan and use the back of your spoon/spatula to flatten batter and evenly distribute oats if necessary.
  • Bake for 22-27 minutes or until the oats are cooked through. You’ll know they’re done when the tops look set and lightly golden brown.
  • Allow oats to cool for a minimum of 10 minutes before slicing. Add toppings and enjoy!

Notes

  • If you’d prefer to use blended cottage cheese instead of Greek yogurt, reduce the salt to 1/4 tsp.
  • Topping suggestions: nut butter (I like natural, salted peanut butter), fresh berries, extra maple syrup.

Nutrition

Serving: 1square | Calories: 300kcal | Carbohydrates: 33g | Protein: 17g | Fat: 11g | Saturated Fat: 3g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 5g | Trans Fat: 0.01g | Cholesterol: 91mg | Sodium: 343mg | Potassium: 288mg | Fiber: 3g | Sugar: 12g | Vitamin A: 206IU | Vitamin C: 0.01mg | Calcium: 206mg | Iron: 2mg

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

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About Miranda

Miranda is a Registered Dietitian on a mission to help you make healthy eating easier with simple recipes and doable nutrition tips.

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27 Comments

  1. Robin Daniels says:

    5 stars
    Wonderful. I’m not a fan of greek yogurt so I was a little skeptical. I know it’s good for you so this is great way to protein and calcium 

  2. Sharon says:

    5 stars
    I already commented, but wanted to add that I use sugar free maple syrup for the sweetener , in case anyone wanted to know if that works. Works like a charm – if you aren’t opposed to sugar free products once in a while. It helps me to reduce the calories once in a while. 👍🏼

    1. Miranda Galati, MHSc, RD says:

      Sharon, thank you so much for sharing this!! So helpful for everyone to know! And love that you paired with chicken sausage — what a great idea. Appreciate your review!

  3. Sharon says:

    5 stars
    I LOVE this baked oatmeal, and I prep it in repeat! I add a tablespoon of chia seeds and use protein oats for half of the oats to add fiber and boost the protein a bit more. I also add a tablespoon of zero calorie brown sugar. This is heaven, especially paired with berries (more fiber) and chicken sausage (more protein) and drizzled with sugar free maple syrup. Yum!😋 

  4. Nur says:

    What if I don’t have protein powder? Can I ad more oats instead? Thank you!

    1. Miranda Galati, MHSc, RD says:

      I would suggest trying another one of my baked oats recipes if you can — the protein powder is a dry ingredient but it does also add flavor! If not, you could always try adding extra oats, but it hasn’t been tested that way. Hope you enjoy either way!!

  5. Melissa says:

    Can you substitute Greek yogurt for the cottage cheese? Thank you 

    1. Miranda Galati, MHSc, RD says:

      Hi Melissa! Yes, you can 🙂

  6. Renée Owieczka says:

    Can I add fruit to the batter BEFORE baking?

    Thanks,

    Renée 

    1. Miranda Galati, MHSc, RD says:

      Yes you can! I would limit to about 1 cup of fruit, and if you’re using frozen, make sure it doesn’t defrost before adding to the oats. Hope you enjoy!

  7. Lyressa Osgood says:

    I’m wondering if steel cut oats could be substituted? Would you change the amount of oats in the recipe? Thanks! 

    1. Miranda Galati, MHSc, RD says:

      Unfortunately steel cut oats will not work in this particular recipe. Sorry about that!