Onion Casserole
["4 c. sliced onions", "4 Tbsp. butter", "2 eggs", "1 c. milk", "dash of salt and pepper", "2/3 c. Parmesan cheese"]
["Saute onions in butter; put in casserole. Mix together eggs, milk, salt and pepper. Pour over onions; sprinkle with Parmesan cheese. Bake at 350\u00b0 until golden."]
["onions", "butter", "eggs", "milk", "salt", "Parmesan cheese"]