Whisk together the eggs, half-and-half, mustard, salt, and pepper until well-combined. Assemble the casserole. Mix the sausage mixture, hash browns ... and refrigerated overnight before baking.
Choose from savory casseroles, like egg recipes, hash brown casseroles, and breakfast enchiladas, or sweeter options, like baked oatmeal that tastes like walnut brownies or the cinnamon French ...