1 (8 oz.) pkg. macaroni, cooked and drained
1 can cream of celery soup
1/4 c. milk
1 tbsp. chopped onion
2 c. cooked, chopped ham
1 c. grated Cheddar cheese
salt and pepper to taste

Combine cooked macaroni with other ingredients, reserving 1/2 cup of the cheese. Top with the Cheddar cheese and bake at 375°F for 30 minutes. Good way to use leftover ham.