Cheese Sausage Strata

In a large skillet, cook sausage over medium heat until no longer pink; drain. Add the eggs, milk, bread, cheese, bacon and mustard. Transfer to a greased shallow 3-qt. baking dish. Cover and refrigerate overnight. Remove from the refrigerator 30 minutes before baking. Cover and bake at 350 degrees for 60-65 minutes or until a knife inserted near the center comes out clean. Let stand for 5 minutes before serving. Note: I like to cook 3 pounds of sausage (it usually comes in 1 pound tubes) and save the other 1 ½ pounds of sausage for another casserole. I also cook the bacon ahead of time.