Spinach Squares
["1 c. flour", "1 tsp. salt", "1 tsp. baking powder", "1 medium onion, chopped", "1 c. milk", "1/4 lb. butter, melted", "2 eggs", "1 pkg. frozen chopped spinach, drained", "1 lb. sharp Cheddar cheese, grated"]
["Combine flour, salt and baking powder.", "Add beaten eggs, milk and melted butter, then stir.", "Add remaining ingredients.", "Pour into a 9 x 13-inch pan.", "Bake at 350\u00b0 for 35 minutes or until bubbly around edges.", "When cool, cut into squares and freeze on cookie sheets, then bag.", "When serving, heat squares 20 minutes at 350\u00b0 until brown on edges."]
["flour", "salt", "baking powder", "onion", "milk", "butter", "eggs", "spinach", "Cheddar cheese"]