A stress-free, make-ahead breakfast casserole with sausage, peppers, and cheese that’s perfect for Christmas morning. This crowd-pleasing dish comes together in just 15 minutes of prep and bakes to golden, bubbly perfection.
For best results, use day-old bread and let the casserole rest before cutting. The casserole can be assembled the night before and baked in the morning. For a gluten-free version, use gluten-free bread that has been dried out. For a dairy-free version, use unsweetened almond milk and dairy-free cheese.
Keywords: Christmas breakfast casserole, sausage casserole, kid-friendly breakfast, make-ahead breakfast, holiday breakfast, breakfast casserole with sausage and peppers