Squash And Potato Casserole
["1 to 1 1/2 lb. yellow squash", "1 large onion, chopped in large pieces", "6 to 8 potatoes, sliced", "5 Tbsp. margarine", "salt and pepper to taste", "2 slices bread, soaked in milk", "1/2 to 1 c. milk (as much as needed)", "grated cheese (on top)"]
["Mix all together.", "Bake at 350\u00b0 until squash and potatoes are tender.", "Add cheese and melt."]
["yellow squash", "onion", "potatoes", "margarine", "salt", "bread", "milk", "grated cheese"]