2 1/2 c. cooked macaroni
3 tbsp. flour
3/4 tsp. salt
1/4 tsp. dry mustard
1/8 tsp. pepper
1/2 tsp. Worcestershire sauce
3 tbsp. shortening
2 c. milk
2 tbsp. onion, chopped
1 1/2 c. Sharp shredded cheese
2 c. green beans, drained

Place macaroni in greased casserole. Melt shortening, blend in flour and seasonings. Stir in milk and cook until smooth. Add onion and cheese, stirring until cheese melts. Add beans. Pour mixture over macaroni and mix lightly. Sprinkle cheese on top. Bake at 375 degrees for 20 minutes.