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Easy Healthy Breakfast Casseroles Recipe

Healthy Breakfast Casseroles

A healthy breakfast casserole is a baked dish that combines eggs, vegetables, lean proteins, and lighter cheeses into one pan. Unlike heavier casseroles loaded with cream and processed meats, this version focuses on balanced nutrition while still being delicious.

Ingredients

Scale
  • 8 large eggs

  • 1 cup egg whites (optional, for extra protein and fewer calories)

  • 1 cup low-fat milk (or unsweetened almond milk)

  • 1 cup fresh spinach, chopped

  • 1 red bell pepper, diced

  • 1 small zucchini, grated

  • 1 small onion, finely chopped

  • ½ cup mushrooms, sliced

  • 1 cup cooked turkey sausage or chicken sausage (crumbled)

  • 1 cup reduced-fat cheddar cheese (or part-skim mozzarella)

  • 1 teaspoon garlic powder

  • 1 teaspoon salt

  • ½ teaspoon black pepper

  • 2 tablespoons fresh parsley, chopped

Instructions

Step 1: Preheat oven

Set oven to 350°F (175°C) and grease a 9×13-inch baking dish with olive oil spray.

Step 2: Prepare vegetables

Sauté onion, bell pepper, mushrooms, and zucchini in a skillet until softened. Stir in spinach and cook until just wilted.

Step 3: Cook sausage

Brown turkey or chicken sausage in a separate pan until fully cooked. Drain any excess liquid.

Step 4: Mix egg base

In a large bowl, whisk eggs, egg whites, milk, garlic powder, salt, and pepper until smooth.

Step 5: Assemble casserole

Spread the cooked vegetables and sausage evenly in the baking dish. Pour the egg mixture over them and top with shredded cheese.

Step 6: Bake casserole

Bake uncovered for 35–40 minutes until the eggs are set and the top is lightly golden.

Step 7: Rest and serve  

Allow casserole to rest for 5 minutes before slicing. Garnish with parsley.