Christmas Breakfast Sausage Casserole Breakfast Recipes 4 1lbpork sausage 6sliwhite bread, toasted and cut into cubes 0.5lbmild cheddar cheese, shredded 1tmustard powder 4eggs, beaten 2cmilk Crumble the sausage into a skillet. Cook over medium heat. Drain. Mix together cooked sausage, toast, cheese, mustard, salt, eggs, and milk. Pour into a greased, 9 x 13 inch baking dish. Cover. Refrigerate overnight. Bake, covered, at 350F.(175C.) for 45 to 60 minutes. Uncover, and reduce temperature to 325F.(165C). Bake for an additional 30 minutes, or until set.