Potatoes Mozzarella(Serves 8)  
["4 large potatoes, cooked and peeled", "2 Tbsp. butter", "2 Tbsp. chopped onion", "2 Tbsp. flour", "1 tsp. salt", "pepper to taste", "2 c. milk", "1 c. grated Mozzarella cheese"]
["Peel and slice potatoes and put half of them into a greased 2-quart casserole."]
["potatoes", "butter", "onion", "flour", "salt", "pepper", "milk", "Mozzarella cheese"]