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 23 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.

Like this? Rate and comment below!

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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30 Comments

  1. Rachel says:

    5 stars
    This is the easiest recipe for meal prep breakfasts and really give me something to look forward to at the end of a night shift! I have been eating these for over 3 months straight! My colleagues are always jealous and a few have gone and made them for themselves as well! Super packed with protein goodness already, and even better served with Greek Yoghurt and fresh raspberries on the side. Will be a favourite for years to come as my 8 year old now requests for her school lunches as well. Thanks Miranda!

  2. Jacqueline says:

    5 stars
    I’m really enjoying this recipe! I’m topping it with berries, peanut butter, and honey. It’s been nice to have breakfast ready to go in the morning. Thank you for sharing this with us.

  3. Anonymous says:

    5 stars
    These are great

  4. Kristina says:

    5 stars
    These are my new weekday breakfast go to. I’ve modified by adding chia and ground flaxseed to increase the fiber. Eat them heated with blueberries on top. Absolutely delicious!

    1. Miranda Galati, MHSc, RD says:

      I’m so glad you liked them. Thanks for the review!!

    2. Gabriela says:

      Hi! How much Chia/flaxseed did you add? Thanks!

  5. Jaimisa says:

    5 stars
    A great new way to use oatmeal, super filling and delicious! I definitely had to cook longer in my oven, so as always it will vary. Super easy to prep, will make these again!

  6. Kalli says:

    5 stars
    Absolutely love this one!!! I’ve prepped it for breakfast three weeks in a row now! So easy and filling. 

  7. Lyda Du says:

    5 stars
    Yummy , thank you . 

    1. Miranda Galati, MHSc, RD says:

      So glad you enjoyed them!

  8. Samantha says:

    4 stars
    This recipe makes the house smell amazing! These baked oats have the potential to be super delicious if not over baked. I know all ovens are different; I did these as the recipe is written at 375° and checked them at 25 mins and they are super overdone, very well browned on top and dry throughout. Not a moist crumb to be found. I would recommend baking them at 350° and checking at 20-25 mins. Will definitely make these again and lower the oven temp and baking time. Thank you for sharing a great idea for meal prep!

    1. Miranda Galati, MHSc, RD says:

      I’m so sorry they were overdone! Hope you enjoy next time and thank you for the feedback.

  9. Miranda Galati, MHSc, RD says:

    I’m glad you liked it! You might find it sweeter with vanilla protein powder next time – the recipe calls for this because it serves as a sweetener + flavor enhancer here. But regardless, I love that you made it work!

  10. Cara says:

    5 stars
    THESE ARE SO YUMMY! 10/10! I love how it’s protein packed too! 

    1. Miranda Galati, MHSc, RD says:

      I’m so glad you enjoyed them YAY!!