In a bowl, combine the dry ingredients. Combine egg, milk and butter stir into dry ingredients just until moistened. Fold in sausage and cheese.
Fill greased or paper-lined muffin cups two-thirds full. Bake at 375° for 18-22 minutes or until a toothpick comes out clean. Cool for 5 minutes before removing from pans. Serve warm. Refrigerate leftovers.