Layered Seafood Quiche
["3/4 c. finely chopped onion", "1 (12 1/2 oz.) can Star-Kist solid white or solid light tuna in spring water, drained and flaked", "2 c. (8 oz.) shredded Cheddar cheese", "3 eggs, slightly beaten", "1 (12 oz.) can Pet evaporated or light evaporated skimmed milk", "1/2 tsp. salt"]
["Cook onion in medium saucepan, covered, over very low heat until soft, adding water if necessary to prevent scorching.", "Line bottom of 9-inch pie pan with tuna.", "Sprinkle with cooked onion. Top with cheese.", "Combine eggs, milk and salt in small bowl; mix well. Pour over cheese.", "Bake in preheated 350\u00b0 oven for 30 minutes or until set.", "Let stand at least 10 minutes before cutting.", "Garnish as desired.", "Makes 8 servings."]
["onion", "solid white", "Cheddar cheese", "eggs", "milk", "salt"]