A light and fluffy breakfast casserole with sausage, eggs, and cheese that can be assembled the night before. Perfect for holiday mornings or lazy weekends, this crowd-pleaser is healthier than traditional versions but just as delicious.
Use day-old bread for best texture. Do not skip the overnight refrigeration step. Let the casserole rest for 5 minutes after baking before cutting. If the top browns too quickly, tent loosely with foil. For a vegetarian version, replace sausage with 2 cups sautéed mushrooms, spinach, and zucchini. For a low-carb option, replace bread with 4 cups frozen hash browns (thawed and patted dry) or riced cauliflower.
Keywords: breakfast casserole, make-ahead breakfast, sausage casserole, egg bake, holiday brunch, light breakfast casserole