High Protein Breakfast Casserole: 10 Eggs!

Name: High Protein Breakfast Casserole: 10 Eggs!
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: American
Ingredients: 10 large eggs; 4 egg whites; 1 pound lean ground turkey; 2 cups fresh spinach; 2 cups chopped mixed bell peppers; 1 medium onion, diced; 1 cup shredded low fat cheddar cheese; ½ cup skim milk; 1 tablespoon olive oil; 2 garlic cloves, minced; 1 teaspoon salt; ½ teaspoon black pepper

by basmer

31 de August de 2025

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High Protein Breakfast Casserole has been my go-to for busy mornings, and I’m so excited to share it with you! It all started when I was training for a half-marathon and needed something substantial to fuel my early runs, but also quick and easy to whip up. This protein-packed morning bake quickly became my secret weapon. The aroma of savory turkey, peppers, and onions filling the kitchen as it bakes is just incredible – it’s a truly comforting smell. If you’ve ever wondered what is a high-protein breakfast casserole, it’s basically a delicious, nutrient-dense meal designed to keep you full and energized. Let’s get cooking!

Why You’ll Love This High Protein Breakfast Casserole

This dish is a winner for so many reasons, making it a staple in my weekly meal prep:

Incredible flavor that satisfies
Super quick to assemble, perfect for busy mornings
Packed with protein to keep you full for hours
A budget-friendly way to start your day right
Family-friendly, even picky eaters love it
This protein-packed morning bake is incredibly versatile
A healthy breakfast casserole recipe that supports your goals
This protein-packed morning bake makes mornings a breeze

Ingredients for High Protein Breakfast Casserole

Putting together this savory high-protein breakfast dish is a breeze with these simple ingredients. I always make sure to have everything prepped before I start mixing, which really speeds things up.

10 large eggs – the foundation for our protein-packed morning bake
4 egg whites – for extra protein without the extra fat
1 pound lean ground turkey – a fantastic source of lean protein
2 cups fresh spinach – wilts down beautifully and adds nutrients
2 cups chopped mixed bell peppers – for color and a slight sweetness
1 medium onion, diced – adds a savory depth of flavor
1 cup shredded low fat cheddar cheese – gives it that perfect cheesy finish
½ cup skim milk – helps create a lighter, fluffier texture
1 tablespoon olive oil – for sautéing the veggies and turkey
2 garlic cloves, minced – because garlic makes everything better!
1 teaspoon salt – to enhance all the flavors
½ teaspoon black pepper – for a little warmth

How to Make High Protein Breakfast Casserole

Step 1: Get your oven preheated to 375 degrees Fahrenheit. This ensures it’s ready when your delicious mixture is prepared.
Step 2: Grab a skillet and heat 1 tablespoon olive oil over medium heat. Add 1 pound lean ground turkey and cook it until it’s nicely browned. Remember to break it apart as it cooks for even browning.
Step 3: Toss in the 1 medium onion, diced, and 2 garlic cloves, minced into the skillet with the turkey. Sauté until the onion starts to soften and becomes fragrant.
Step 4: Stir in the 2 cups chopped mixed bell peppers and 2 cups fresh spinach. Cook until the vegetables begin to soften and the spinach wilts down. The kitchen will start smelling amazing!
Step 5: Season the turkey and vegetable mixture with 1 teaspoon salt and ½ teaspoon black pepper. Give it a good stir, then remove the skillet from the heat and let it cool slightly.
Step 6: In a large bowl, whisk together 10 large eggs, 4 egg whites, and ½ cup skim milk until everything is smooth and a little fluffy. This is the base of our quick high-protein breakfast bake.
Step 7: Gently fold the cooled turkey and vegetable mixture into the fluffy egg mixture. Be careful not to overmix; you want to keep that lovely texture.
Step 8: Lightly coat your preferred casserole dish with cooking spray or a little oil. Pour the entire mixture into the dish, spreading it out evenly. This is where it really starts to look like a proper quick high-protein breakfast bake.
Step 9: Sprinkle the 1 cup shredded low fat cheddar cheese evenly over the top. It will melt and create a beautiful golden crust.
Step 10: Bake uncovered for 35 to 40 minutes. You’ll know it’s ready when the casserole is firm to the touch and has a light, golden-brown color on top. The aroma will be incredible!
Step 11: Once out of the oven, let this amazing quick high-protein breakfast bake rest for about 5 minutes before slicing and serving. This helps it set perfectly.

Pro Tips for the Best High Protein Breakfast Casserole

I’ve made this dish countless times, and these little tricks really elevate it from good to absolutely amazing. They ensure you get the most satisfying and flavorful result every time.

Don’t overcook the vegetables when sautéing; they will continue to cook in the oven.
For an even richer flavor, consider adding a bit of crumbled cooked bacon or sausage.
Ensure your eggs are at room temperature for a more uniformly cooked casserole.
Letting the mixture sit for a few minutes before baking can help the flavors meld.

What’s the secret to perfect High Protein Breakfast Casserole?

The real secret to the best high-protein breakfast casserole is a good balance of moisture and flavor. Using both whole eggs and egg whites, plus a touch of milk, keeps it from becoming dry. Don’t skip browning the turkey well; that adds a depth of savory taste. For more tips on cooking techniques, you can check out this guide on copycat recipes.

Can I make High Protein Breakfast Casserole ahead of time?

Absolutely! You can assemble the entire casserole, cover it tightly, and refrigerate it overnight. Just be sure to add a few extra minutes to the baking time if it’s cold from the fridge. This make ahead High Protein Breakfast Casserole is a lifesaver for busy weekdays. You can find more make-ahead meal ideas here.

How do I avoid common mistakes with High Protein Breakfast Casserole?

A common pitfall is overcooking, which makes the eggs rubbery and dry. Another mistake is not draining excess fat from the turkey if you don’t use extra lean. Also, make sure your oven temperature is accurate for the best bake. Understanding oven temperatures is key to many recipes, like those found in this collection of family dinners.

Best Ways to Serve High Protein Breakfast Casserole

This versatile dish is fantastic on its own, but I love serving it with a few complementary sides to create a truly satisfying meal. It’s the perfect foundation for a healthy breakfast casserole recipe that you can customize endlessly.

Pair a hearty slice with some fresh avocado slices for healthy fats and a creamy texture.
A side of whole-wheat toast or gluten-free toast is always a good idea to round out the meal.
For a lighter option, serve with a simple side salad or some fresh fruit like berries or melon.

Nutrition Facts for High Protein Breakfast Casserole

This High Protein Breakfast Casserole for weight loss is a fantastic choice for anyone looking to fuel their day healthily. Each serving is packed with goodness to keep you satisfied.

Calories: 280-320
Fat: 12g
Saturated Fat: N/A
Protein: 28g
Carbohydrates: 8g
Fiber: 2g
Sugar: N/A
Sodium: N/A

Nutritional values are estimates and may vary based on specific ingredients used, making this a flexible option for many dietary needs.

How to Store and Reheat High Protein Breakfast Casserole

One of the best things about this dish is its flexibility for meal prep. As a make ahead High Protein Breakfast Casserole, it’s perfect for busy weeks. Once it’s completely cooled, portion it into airtight containers. You can store individual servings in the refrigerator for 3 to 4 days. For longer storage, wrap portions tightly in plastic wrap, then aluminum foil, and freeze them for up to 3 months. This makes grabbing a nutritious breakfast incredibly easy!

When you’re ready to enjoy your make ahead High Protein Breakfast Casserole, reheating is simple. For refrigerated portions, microwave on high for 60-90 seconds, or until heated through. You can also reheat it in a toaster oven or a regular oven at 350°F (175°C) for about 10-15 minutes until warm. For frozen portions, thaw them overnight in the refrigerator before reheating using your preferred method. Enjoy your delicious, protein-packed meal!

Frequently Asked Questions About High Protein Breakfast Casserole

What are the main benefits of eating a High Protein Breakfast Casserole?

Eating a high-protein breakfast, like this casserole, helps you feel fuller for longer, which can curb mid-morning cravings. It’s also crucial for muscle repair and growth, and it provides sustained energy to power you through your day. This is why eating a high-protein breakfast casserole is such a smart move for a healthy lifestyle. For more on healthy eating, explore these foods to eat less of.

How do I make a High Protein Breakfast Casserole that’s gluten-free?

This recipe is naturally gluten-free as written, using eggs and meat as the base. If you were to add any binders like breadcrumbs, you would simply swap them for gluten-free breadcrumbs or almond flour. Making a protein breakfast casserole that caters to dietary needs is quite straightforward!

Can I customize the vegetables in my High Protein Breakfast Casserole?

Absolutely! Feel free to swap out the bell peppers and spinach for other vegetables you love. Broccoli florets, mushrooms, zucchini, or even a sprinkle of corn work wonderfully. This flexibility is one of the reasons it’s such a great healthy breakfast casserole recipe.

Why is my High Protein Breakfast Casserole watery?

A watery casserole usually means there was too much moisture from the vegetables or the eggs weren’t fully cooked. Make sure to sauté your vegetables until they release most of their water, and don’t be afraid to drain any excess liquid before adding them to the egg mixture. This helps ensure you get a perfectly set protein breakfast casserole.

Variations of High Protein Breakfast Casserole You Can Try

This base recipe is incredibly adaptable, allowing you to create a variety of delicious breakfast bakes. Whether you’re looking for specific dietary needs or just a change in flavor, there’s a variation for you!

Egg White Breakfast Casserole: For a lighter option, use only egg whites and add extra vegetables like broccoli or mushrooms for bulk and flavor.
Low-Carb Protein Breakfast Bake: Keep it keto-friendly by omitting any starchy vegetables or adding in some cauliflower rice. Cheese, like cheddar or Monterey Jack, works perfectly here.
Vegetable Protein Breakfast Casserole: Load up on your favorite veggies! Zucchini, sweet potatoes (in moderation for lower carb), kale, or asparagus all make fantastic additions to this healthy breakfast casserole recipe.
Spicy Southwest Kick: Add diced jalapeños, a pinch of cumin, and some chili powder to the turkey mixture for a flavorful, spicy twist. Top with pepper jack cheese for an extra kick.