Why You’ll Love This Recipe

This casserole is the perfect balance of protein, veggies, and cheesy goodness. It’s incredibly versatile, so you can easily swap out ingredients based on your preferences or what you have on hand. Plus, it’s easy to make ahead, and it stores well for leftovers, making mornings a breeze. This dish will keep you full and energized all day long!

Ingredients

8 large eggs
1 cup milk (or dairy-free alternative)
1 cup cooked and crumbled turkey sausage (or any protein)
1 cup spinach, chopped
1 cup bell peppers, diced
1 cup shredded cheese (cheddar or mozzarella)
Salt and pepper to taste
Cooking spray

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

Directions

Preheat your oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish with cooking spray.
In a large bowl, whisk together the eggs, milk, salt, and pepper until fully combined.
Add the cooked and crumbled turkey sausage, chopped spinach, diced bell peppers, and shredded cheese to the egg mixture. Stir to combine.
Pour the mixture into the prepared baking dish and spread it out evenly.
Bake for 30-35 minutes, or until the casserole is set in the middle and golden on top.
Remove from the oven and let it cool for a few minutes before slicing and serving.

Servings and Timing

Servings: 6-8
Total time: 45 minutes

Variations

Different proteins: Swap the turkey sausage for chicken sausage, or ground beef for different flavors.
Dairy-free: Use a dairy-free cheese alternative and a plant-based milk (such as almond or oat milk).
Add more veggies: Feel free to add mushrooms, zucchini, or onions for more variety.
Spices: Add a pinch of garlic powder, paprika, or even a dash of hot sauce for extra flavor.

Storage/Reheating

Storage: Store any leftover casserole in an airtight container in the refrigerator for up to 4 days.
Reheating: To reheat, simply warm individual servings in the microwave or reheat the entire casserole in the oven at 350°F (175°C) for 15-20 minutes.

FAQs

1. Can I make this casserole ahead of time?

Yes! This casserole can be assembled the night before and stored in the fridge. Just pop it in the oven the next morning.

2. Can I use a different type of meat?

Absolutely! You can use any protein you prefer, ground beef, or even tofu for a vegetarian option.

3. Is this recipe gluten-free?

Yes, this casserole is naturally gluten-free as long as you use a gluten-free protein (like turkey sausage) and check that your cheese and milk are also gluten-free.

4. Can I freeze the breakfast casserole?

Yes, you can freeze the casserole. After baking, allow it to cool completely, then cover tightly and freeze for up to 3 months. Reheat in the oven at 350°F (175°C) for about 30 minutes.

5. Can I add other vegetables to this casserole?

Definitely! You can add onions, mushrooms, zucchini, or even broccoli to enhance the flavor and nutrition.

6. Can I use egg whites instead of whole eggs?

Yes, you can use egg whites or a combination of egg whites and whole eggs to reduce the fat content.

7. How can I make the casserole spicier?

Add diced jalapeños or sprinkle some chili powder or cayenne pepper into the egg mixture for a little heat.

8. Can I use a different type of cheese?

Yes, feel free to experiment with different cheeses such as feta, goat cheese, or a spicy pepper jack for a twist.

9. How do I know when the casserole is done?

The casserole is done when it’s firm in the center and slightly golden on top. A toothpick inserted in the middle should come out clean.

10. Can I make this recipe without milk?

Yes, you can substitute the milk with a dairy-free alternative, or you can omit it entirely for a denser casserole.

Conclusion

This High-Protein Breakfast Casserole is an easy, delicious, and nutritious way to start your day. With protein-packed eggs, flavorful sausage, and a variety of veggies, it’s a complete meal in one dish. Whether you’re meal prepping for the week or hosting a brunch, this casserole is sure to please everyone at the table.

High-Protein Breakfast Casserole

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Author: Julia
Total Time: 45 minutes
Yield: 6-8 servings
Diet: Gluten Free

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Description

This High-Protein Breakfast Casserole is a hearty, satisfying, and nutritious dish that combines eggs, protein, veggies, and cheese. Perfect for meal prepping or feeding a crowd, this recipe is versatile and easy to make ahead. It’s a great way to kickstart your day with plenty of energy!

Ingredients

8 large eggs

1 cup milk (or dairy-free alternative)

1 cup cooked and crumbled turkey sausage (or any protein)

1 cup spinach, chopped

1 cup bell peppers, diced

1 cup shredded cheese (cheddar or mozzarella)

Salt and pepper to taste

Cooking spray

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Instructions

Preheat your oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish with cooking spray.
In a large bowl, whisk together the eggs, milk, salt, and pepper until fully combined.
Add the cooked and crumbled turkey sausage, chopped spinach, diced bell peppers, and shredded cheese to the egg mixture. Stir to combine.
Pour the mixture into the prepared baking dish and spread it out evenly.
Bake for 30-35 minutes, or until the casserole is set in the middle and golden on top.
Remove from the oven and let it cool for a few minutes before slicing and serving

Notes

Storage: Leftover casserole can be stored in an airtight container in the fridge for up to 4 days.

Reheating: Reheat individual servings in the microwave or reheat the entire casserole at 350°F (175°C) for 15-20 minutes.

Prep Time: 10 minutes
Cook Time: 35 minutes
Category: Breakfast
Method: Baking
Cuisine: American