Serves: 6
¼ cup onions - chopped
2 Tablespoons butter
2 Tablespoons flour
1½ cups of milk
½ teaspoon of dry mustard
1/8 teaspoon of black pepper
1 8-ounce package sharp cheddar cheese
4 cups potatoes - thinly sliced
1 9-ounce box frozen green beans
In saucepan, cook onion in butter until tender; stir in flour until smooth. Add milk, mustard and pepper; cook and stir until thickened. Add cheese; stir until melted. Add potatoes and beans. Turn into greased 2-quart baking dish. cover; bake at 350° for 50 minutes. Uncover; bake 25 minutes or until potatoes are tender.