This easy make-ahead breakfast casserole with sausage is the ultimate crowd-pleaser for brunch, holiday mornings, or potlucks. It comes together in under 15 minutes of active prep time and uses simple ingredients like eggs, milk, bread, cheese, and sausage.
For best results, use day-old bread to avoid sogginess. If the top browns too quickly but the center isn’t set, tent with foil for remaining baking time. Let the casserole rest before cutting for cleaner slices.
Keywords: breakfast casserole, make-ahead breakfast, sausage casserole, brunch recipe, easy breakfast, egg casserole, holiday breakfast