Overnight Sausage and Egg Breakfast Casserole

Instructions

1. 1
   In a large skillet, brown sausage over medium heat, breaking it apart, until cooked through. Drain fat and set aside.
2. 2
   Grease a 9x13-inch baking dish. Layer bread cubes evenly in the dish.
3. 3
   Sprinkle cooked sausage and 1 1/2 cups of cheddar cheese (and green onions, if using) over the bread cubes.
4. 4
   In a large bowl, whisk together eggs, milk, salt, pepper, garlic powder, and dried mustard until well combined.
5. 5
   Pour egg mixture evenly over the casserole. Press gently with a spoon to help bread absorb the liquid.
6. 6
   Cover dish with plastic wrap or foil and refrigerate overnight, at least 8 hours.
7. 7
   Remove casserole from fridge and let sit at room temperature while preheating oven to 350°F (175°C).
8. 8
   Sprinkle remaining 1/2 cup cheese on top. Bake uncovered for 45-55 minutes, or until golden and set. Let cool 10 minutes before serving.