Oven Omelet Brunch
["1/4 c. butter", "1 doz. eggs", "3/4 c. sour cream", "3/4 c. milk", "1/2 tsp. salt", "1/4 c. chopped onion", "grated cheese (optional)"]
["Melt butter in 13 x 9-inch pan.", "Beat eggs, sour cream, milk and salt; add onion and put in dish.", "Sprinkle cheese over top, if desired.", "Bake at 325\u00b0 until set, but moist, about 35 minutes."]
["butter", "eggs", "sour cream", "milk", "salt", "onion", "grated cheese"]