This easy breakfast casserole combines sausage, cheese, and bread in a custardy, golden-baked dish that’s perfect for brunch or holiday mornings. Mix everything in one bowl for a no-fuss, crowd-pleasing meal.
For overnight prep: Cover assembled unbaked casserole tightly and refrigerate up to 12 hours. Remove from fridge while oven preheats (about 20 minutes) and add 5-10 minutes to baking time. Use day-old bread for best texture; if using fresh bread, cube and dry in a 300°F oven for 5-7 minutes. Let casserole rest before slicing to allow custard to set.
Keywords: breakfast casserole, cheesy breakfast casserole, sausage casserole, easy breakfast recipe, brunch casserole, overnight breakfast casserole