Spray a 9×13 inch pan or dish with non-stick spray.
Brown sausage and drain. Beat the eggs. Add salt, dry mustard, milk, cheese, seasoned bread cubes and drained sausage. Pour into prepared pan or dish. Let sit in refrigerator overnight. Bake in 350 deg. oven for 45 min. to 1 hour or until a knife inserted in middle comes out clean.