In a large skillet, cook the sausage, beef, onion, mushrooms and green pepper over medium heat until meat is no longer pink; drain. Stir in salt and pepper; set aside. Pour butter into an ungreased 13-in. x 9-in. x 2-in. baking dish. sprinkle with 1 cup cheese. beat eggs; pour over cheese. Top with sausage mixture. Pour the cream over sausage mixture. Sprinkle with remaining cheese. Cover and refrigerate for 8 hours or overnight. Remove from the refrigerator 30 minutes before baking. Bake, uncovered, at 325 degrees F for 35-40 minutes or until set. Let stand for 10 minutes before cutting.