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Easy Cheesy Sausage and Egg Breakfast Casserole Recipe for Perfect Mornings

easy cheesy sausage and egg breakfast casserole - featured image

A quick and easy breakfast casserole combining savory sausage, fluffy eggs, and sharp cheddar cheese, perfect for busy mornings or brunch gatherings.

Ingredients

Scale
  • 1 pound (450g) breakfast sausage, bulk or loose
  • 8 large eggs, room temperature
  • 1 cup (240ml) whole milk or 2%
  • 2 cups (about 8 oz or 225g) shredded sharp cheddar cheese
  • 1 small yellow onion, finely chopped
  • 2 cloves garlic, minced
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • Optional: 2 tablespoons fresh parsley or chives, chopped
  • 1 tablespoon butter or cooking oil

Instructions

  1. Preheat your oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish with butter or non-stick spray.
  2. Heat 1 tablespoon of butter or oil in a large skillet over medium heat. Add the sausage, breaking it up with a spatula, and cook until browned and no longer pink, about 7-8 minutes. Drain excess fat if needed.
  3. Add the chopped onion to the skillet and cook for 3-4 minutes until softened and translucent. Toss in the garlic and cook for another 30 seconds until fragrant. Remove from heat and set aside.
  4. In a large bowl, whisk together the 8 eggs and 1 cup (240ml) milk until smooth and slightly frothy.
  5. Stir the cooked sausage, onion, garlic, and 1 ½ cups (about 6 oz or 170g) shredded cheddar into the egg mixture. Season with salt and pepper, adjusting to taste.
  6. Pour the mixture evenly into the prepared baking dish. Sprinkle the remaining ½ cup (2 oz or 55g) cheddar on top.
  7. Bake for 35-40 minutes until edges are bubbling, top is golden brown, and a knife inserted in the center comes out clean.
  8. Let the casserole cool for 5-10 minutes before slicing.
  9. Garnish with fresh parsley or chives if desired.

Notes

Use freshly shredded cheese for better melting. Tent with foil if the top browns too quickly. Let the casserole rest before slicing for cleaner cuts. Room temperature eggs help with even baking. For dairy-free, substitute milk and cheese with plant-based alternatives. This recipe is naturally gluten-free.

Nutrition

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