Spinach & Cheese Breakfast Casserole (High-Protein & Easy Recipe)
Start your morning right with this Spinach & Cheese Breakfast Casserole—a wholesome, protein-packed dish loaded with fresh vegetables, creamy cheese, and fluffy eggs. Whether you’re preparing a quick weekday breakfast or a relaxing weekend brunch, this casserole is easy, nutritious, and incredibly satisfying.
With a golden, crispy top and a soft, cheesy interior, this recipe is perfect for meal prep and can easily be customized to suit your taste.
Why You’ll Love This Recipe
- High in protein and nutrients
- Ready in under 45 minutes
- Perfect for meal prep
- Family-friendly and customizable
- Great for breakfast, brunch, or even dinner
Servings & Timing
- Servings: 6–8
- Prep Time: 10 minutes
- Cook Time: 30–35 minutes
- Total Time: ~45 minutes
Ingredients
- 6 large eggs
- 2 cups fresh spinach (chopped)
- 1 cup shredded mozzarella cheese
- 1 cup shredded cheddar cheese
- 1 small onion (finely chopped)
- 1 red bell pepper (chopped)
- 1 cup cottage cheese
- 1 teaspoon garlic powder
- ½ teaspoon salt
- ½ teaspoon black pepper
- 1 tablespoon olive oil
Step-by-Step Instructions
1. Preheat the Oven
Preheat your oven to 350°F (175°C).
Grease a 9×9-inch baking dish with butter or cooking spray to prevent sticking.
2. Sauté the Vegetables
- Heat olive oil in a skillet over medium heat.
- Add chopped onion and bell pepper. Sauté for 3–4 minutes until softened.
- Add spinach and cook for another 2 minutes until wilted.
- Remove from heat and let cool slightly.
Tip: Cooling prevents the eggs from cooking too early when mixed.
3. Prepare the Egg Mixture
- In a large mixing bowl, crack and beat the eggs until smooth.
- Add cottage cheese, garlic powder, salt, and black pepper.
- Mix until well combined.
4. Combine Everything
- Add the sautéed vegetables into the egg mixture.
- Fold in mozzarella and cheddar cheese.
- Stir until evenly distributed.
5. Bake the Casserole
- Pour the mixture into the prepared baking dish.
- Bake for 30–35 minutes or until:
- The center is set
- The top is golden brown
Insert a knife in the center—if it comes out clean, it’s ready!
6. Cool & Serve
- Let the casserole rest for 5 minutes before slicing.
- Cut into squares and serve warm.
Serving Suggestions
Make your meal even better with these ideas:
- Serve with toasted bread or bagels
- Add fresh fruit on the side
- Drizzle hot sauce or top with sour cream
- Pair with a light green salad for a balanced meal
Storage & Reheating
Refrigerator:
- Store in an airtight container for up to 4 days
Freezer:
- Freeze individual portions for up to 1 month
Reheating:
- Microwave: 1–2 minutes
- Oven: Reheat at 325°F (160°C) until warm
Tips & Variations
Add Protein
Mix in cooked:
- Sausage
- Bacon
- Ham
Make It Vegetarian-Friendly
This recipe is already vegetarian—just ensure your cheese is suitable.
Spice It Up
Add:
- Jalapeños
- Red chili flakes
- Hot sauce
Cheese Options
Swap or mix with:
- Feta cheese
- Parmesan
- Monterey Jack
Keto / Low-Carb Option
This recipe is naturally low in carbs—perfect for keto diets!
Health Benefits
- Eggs: High-quality protein for muscle growth
- Spinach: Rich in iron and vitamins
- Cheese: Adds calcium and healthy fats
- Vegetables: Boost fiber and antioxidants
FAQs
Can I make this casserole ahead of time?
Yes! Prepare everything the night before, refrigerate, and bake in the morning.
Can I use frozen spinach?
Absolutely—just thaw and squeeze out excess water before using.
How do I know when it’s fully cooked?
The center should be firm, and a knife inserted should come out clean.
Final Thoughts
This Spinach & Cheese Breakfast Casserole is the ultimate combination of simplicity, flavor, and nutrition. It’s perfect for busy mornings, family brunches, or even a quick dinner option.
Once you try it, it’ll quickly become a go-to recipe in your kitchen!