Cheesy Potatoes Casserole
["6 medium potatoes", "1 (8 oz.) sour cream", "1 c. shredded cheese", "1/2 c. milk", "2 Tbsp. butter", "1/4 c. onion", "1 Tbsp. salt and pepper"]
["Cook potatoes in boiling salted water about 30 minutes or until tender.", "Chill.", "Peel and grate potatoes; combine cheese, milk and 2 tablespoons of butter in a saucepan.", "Cook over low heat until butter and cheese melt.", "Stir occasionally.", "Remove from heat.", "Stir in onion, sour cream, salt and pepper."]
["potatoes", "sour cream", "shredded cheese", "milk", "butter", "onion", "salt"]