This easy cheesy sausage breakfast casserole is the perfect one-pan recipe for holidays, lazy weekends, and feeding a crowd. With simple ingredients and a make-ahead option, it delivers a golden, custardy texture with stretchy cheese and savory sausage every time.
For best results, use day-old sturdy bread (French, Italian, or sourdough) to avoid mushiness. If bread is fresh, cube and dry in a 300°F oven for 10 minutes. Shred cheese yourself for better melting. Let casserole rest after baking for clean slices. For overnight version, refrigerate assembled dish for up to 12 hours and add 5-10 minutes to baking time.
Keywords: breakfast casserole, sausage casserole, easy breakfast, cheesy casserole, one-pan breakfast, holiday brunch, make-ahead breakfast