Ingredients
- 2 Cups dried macaroni
- 2 tablespoons stick margarine
- 4 teaspoons minced onion
- 1 tablespoon all-purpose flour
- 1/4 teaspoon dry mustard
- 1/8 teaspoon ground white pepper
- 2 cups skim milk
- 8 oz grated reduced fat cheddar cheese
- 2 ripe tomatoes thinly sliced
- 1 teaspoon dried parsley flakes