1 lb. ground beef
1 1/2 tsp. salt
1 lg. onion, chopped
1/2 green pepper
1/2 lb. grated cheese
1 c. elbow macaroni
1 pt. tomatoes
1 tsp. prepared mustard
1 can mushroom soup

Cook meat, salt, onions and green pepper until brown. Cook macaroni until almost tender (5 minutes). Mix all ingredients in casserole and bake.