Creating the perfect Overnight Breakfast Casserole is simple if you follow these steps:

1. Brown The Sausage: In a large skillet, cook the breakfast sausage over medium heat until browned. Drain excess fat and set aside.
2. Whisk Eggs: In a large bowl, whisk together the eggs, milk, salt, pepper, garlic powder, and onion powder until well combined.
3. Layer Ingredients: In a greased 9×13 inch baking dish, layer the cubed bread, cooked sausage, and any optional vegetables you choose.
4. Add Cheese: Sprinkle half of the shredded cheese over the layers in the baking dish.
5. Pour Egg Mixture: Pour the egg mixture evenly over the bread and sausage. Use a spatula to press down on the bread slightly, ensuring it’s soaked.
6. Top with Cheese: Sprinkle the remaining cheese on top.
7. Cover and Refrigerate: Cover the dish with plastic wrap or aluminum foil and refrigerate overnight (or for at least 8 hours).
8. Preheat Oven: In the morning, preheat your oven to 350°F (175°C).
9. Bake: Remove the cover and bake for 45 minutes or until the casserole is set in the middle and the top is golden brown.
10. Cool and Serve: Let the casserole cool for a few minutes before slicing. Garnish with fresh herbs if desired.

By following these instructions, you will have an incredible Overnight Breakfast Casserole that will delight everyone at the breakfast table!