Cheesy Beef Macaroni

1 lb. Ground beef                                        1 can whole kernel corn, drained

1 can cream of chicken soup – undiluted        8 oz. Velveeta cheese, shredded

2 ½ cups cooked macaroni                           1 can mushrooms (optional)

Cook beef over medium heat until no longer pink; drain.  Add the corn and soup.  Set aside ½ cup cheese for topping; stir remaining cheese into meat mixture until melted.  Gently stir in macaroni until coated.  Transfer to a greased 8 inch square baking dish.  Top with reserved cheese.  Bake uncovered at 350° for 20-25 minutes or until heated through.