A warm, cheesy breakfast casserole layered with bread, sausage, eggs, and cheese, perfect for holiday mornings and easy to prepare ahead.
Use day-old or slightly stale bread to avoid sogginess. Brown sausage slowly for better flavor and drain excess fat. Whisk eggs and milk until frothy for a lighter custard. Let casserole sit before baking to soak custard evenly. For make-ahead, assemble without cheese, refrigerate overnight, add cheese and bake in the morning.
Keywords: Christmas breakfast casserole, holiday breakfast, sausage casserole, cheesy breakfast bake, easy breakfast casserole, make-ahead breakfast