01 -
Lightly grease a 9x13-inch baking dish with butter or cooking spray.
02 -
Layer the cubed bread evenly across the bottom of the dish.
03 -
Cook sausage in a skillet over medium heat until browned and fully cooked. Drain excess fat.
04 -
Evenly distribute the cooked sausage over the bread, followed by both cheeses and green onions.
05 -
In a large bowl, whisk together eggs, milk, garlic powder, onion powder, salt, and pepper.
06 -
Pour the egg mixture evenly over the casserole.
07 -
Cover tightly with foil or plastic wrap and refrigerate overnight (or at least 6 hours).
08 -
The next morning, preheat oven to 350°F (175°C).
09 -
Bake uncovered for 45–55 minutes or until the center is set and the top is golden.
10 -
Let cool for 10 minutes before slicing and serving.