1 lb. ground beef, browned
1 chopped onion
1 chopped green pepper
1 can black olives
1 can whole kernel corn
1 sm. can mushrooms

Brown ground beef. Add rest of ingredients. Put this in baking dish and put muffin mix on top. (Fix muffin mix according to box.) Bake at 350 degrees for 1 hour. May be topped with sour cream.