Squash Casserole
["4 lb. yellow squash", "1 medium onion", "1 tsp. pepper", "1 Tbsp. salt", "1/2 c. water", "1/2 stick margarine", "1 c. mushroom soup", "1 c. grated American or mild Cheddar cheese"]
["Slice squash and onions in saucepan.", "Cook in water over medium heat about 20 minutes.", "Drain in a colander.", "Mash and add other ingredients (except cheese).", "Place in greased 2-quart dish and cover top with the grated cheese.", "Cover and bake at 350\u00b0 for 10 minutes.", "Remove from oven and let stand for 10 minutes and serve."]
["yellow squash", "onion", "pepper", "salt", "water", "margarine", "mushroom soup", "Cheddar cheese"]