Why You’ll Love This Recipe

Mixed Berry Protein Baked Oatmeal is a hearty and nutritious breakfast option that’s perfect for meal prep or feeding a crowd. Packed with juicy berries, oats, and a boost of protein, it offers a satisfying and wholesome way to start your day. With its soft, cake-like texture and naturally sweet flavor, this dish feels indulgent while keeping you fueled and full for hours.

ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

old-fashioned rolled oats
mixed berries (fresh or frozen)
protein powder (vanilla or unflavored)
milk (dairy or plant-based)
eggs
maple syrup or honey
vanilla extract
baking powder
ground cinnamon
salt
melted coconut oil or butter

directions

Preheat your oven to 350°F (175°C) and grease a 9×9-inch baking dish.

In a large mixing bowl, combine the oats, protein powder, baking powder, cinnamon, and salt.

In another bowl, whisk together the milk, eggs, maple syrup, vanilla extract, and melted coconut oil.

Pour the wet ingredients into the dry ingredients and mix until well combined.

Gently fold in the mixed berries, reserving a few for topping.

Pour the mixture into the prepared baking dish and spread evenly.

Top with the remaining berries for a colorful finish.

Bake for 35-40 minutes, or until the center is set and the edges are golden brown.

Allow to cool slightly before slicing and serving.

Servings and timing

This recipe yields approximately 6 servings.
Preparation time: 10 minutes
Baking time: 35-40 minutes
Cooling time: 10 minutes
Total time: 55-60 minutes

Variations

Use chocolate protein powder for a rich twist.
Add chopped nuts or seeds for crunch and extra nutrition.
Swap berries for chopped apples or bananas depending on the season.
Include a dollop of Greek yogurt or nut butter on top before serving.

storage/reheating

Store baked oatmeal in an airtight container in the fridge for up to 5 days.
To reheat, microwave individual portions for 30-60 seconds or warm in the oven at 300°F (150°C) for 10 minutes.
For longer storage, freeze individual slices and thaw overnight in the fridge before reheating.

FAQs

Can I use quick oats instead of rolled oats?
Yes, but the texture will be slightly softer and less chewy.

What kind of protein powder works best?
Whey, casein, or plant-based protein powders all work—choose your favorite flavor or unflavored for flexibility.

Can I make this recipe egg-free?
Yes, use flax eggs or a commercial egg replacer for a vegan-friendly option.

Is it sweet enough without syrup?
It has mild natural sweetness from the berries, but feel free to adjust sweetener to taste.

Can I use only one type of berry?
Absolutely! Blueberries, raspberries, or chopped strawberries all work great solo.

Can I make it ahead of time?
Yes, this is perfect for meal prep. Bake it on Sunday and enjoy it throughout the week.

Is this good for kids?
Yes, it’s a wholesome and tasty breakfast option kids will enjoy.

Can I eat it cold?
Yes, it tastes great warm or chilled straight from the fridge.

Conclusion

Mixed Berry Protein Baked Oatmeal is a flavorful and nourishing way to power up your mornings. Whether you’re prepping for the week or feeding a hungry family, this easy-to-make breakfast delivers both comfort and nutrition in every bite. It’s a recipe you’ll come back to again and again for its taste, texture, and versatility.