1 tbsp. butter
1/2 c. chopped onion
1 lb. ground chuck
1/2 lb. cheese, cubed
8 oz. pkg. elbow macaroni, cooked in 3 qt. salted water
1 tbsp. mustard
1 pkg. frozen corn
1/2 tsp. salt
1/4 tsp. pepper
1 can tomato soup

Melt butter and onion; cook until transparent and meat is browned. Mix cheese, noodles, mustard, corn, etc. Stir in meat mixture, put in 1 1/2 quart buttered casserole. Bake at 350 degrees for 1 hour.