• Step 1: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with nonstick cooking spray or butter.
• Step 2: In a large bowl, whisk together the eggs, milk, salt, and black pepper until well combined.
• Step 3: Add the cooked and crumbled sausage to the egg mixture and stir to distribute evenly.
• Step 4: Pour the sausage-egg mixture into the prepared baking dish, then sprinkle the shredded cheddar cheese on top.
• Step 5: Bake the casserole for 35-40 minutes, or until the center is set and the cheese is melted and bubbly.
• Step 6: Remove the casserole from the oven and let it cool for 5-10 minutes before serving.