Potato Casserole
["5 lb. potatoes, peeled", "3 Tbsp. margarine", "1 1/2 c. low-fat milk", "2 c. low-fat small-curd cottage cheese", "1 medium onion, finely chopped", "8 oz. finely grated Mozzarella and Cheddar cheese mixed (low-fat)", "salt and pepper to taste"]
["Boil and drain potatoes.", "Mash with margarine and milk until fluffy.", "Add onions, cottage cheese, salt and pepper; mix well. Put in 3-quart greased casserole dish.", "Sprinkle with grated cheese.", "Bake at 350\u00b0 for 40 minutes."]
["potatoes", "margarine", "low-fat milk", "low-fat small-curd", "onion", "Cheddar cheese", "salt"]