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Easy Sausage Egg and Cheese Breakfast Casserole

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A quick and easy breakfast casserole combining savory sausage, fluffy eggs, and melty cheese for a comforting and satisfying morning meal.

Ingredients

Scale
  • 1 pound breakfast sausage (pork or turkey)
  • 10 large eggs, room temperature
  • 1 cup whole milk or half-and-half
  • 2 cups shredded sharp cheddar cheese (can swap half with mozzarella)
  • ½ cup finely chopped onion (optional)
  • 1 teaspoon garlic powder
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • Butter or cooking spray for greasing the baking dish
  • Optional add-ins: ½ cup chopped bell peppers or mushrooms, 1–2 tablespoons fresh herbs (parsley or chives), hot sauce or smoked paprika

Instructions

  1. Preheat the oven to 350°F (175°C) and grease a 9×13-inch baking dish with butter or cooking spray.
  2. Heat a skillet over medium heat and brown the sausage, breaking it apart with a spatula, until no longer pink and nicely browned, about 7 to 9 minutes. Drain excess fat if needed and set aside.
  3. In a large bowl, whisk together the eggs, milk (or cream), garlic powder, salt, and pepper until combined and slightly frothy.
  4. Spread the cooked sausage evenly in the greased baking dish. If using onions or other veggies, sprinkle them on top of the sausage.
  5. Pour the egg mixture over the sausage and veggies. Sprinkle the shredded cheese evenly over the top.
  6. Bake the casserole for 35 to 40 minutes, or until the eggs are set and a knife inserted in the center comes out clean. The cheese should be melted and lightly golden.
  7. Let the casserole cool for 5 to 10 minutes before slicing and serving.

Notes

Use room temperature eggs and milk for better texture. If edges brown too quickly, cover loosely with foil halfway through baking. Drain excess sausage fat to avoid sogginess. Prep the casserole the night before and bake fresh in the morning for convenience. Optional toppings like crushed crackers or breadcrumbs can add a golden crust but avoid for gluten-free versions.

Nutrition

Keywords: breakfast casserole, sausage casserole, egg casserole, easy breakfast, make-ahead breakfast, cheesy breakfast bake