Spinach Bars
["4 Tbsp. butter", "1 c. flour", "1 tsp. baking powder", "1 small onion, chopped", "6 strips crisp bacon, crumbled", "1 lb. shredded Cheddar cheese", "1 c. fried onion rings, crushed", "3 eggs, lightly beaten", "1 c. milk", "1 (10 oz.) pkg. chopped spinach, thawed", "1/2 c. chopped mushrooms"]
["Drain spinach.", "In large bowl, mix together the eggs, flour, milk and baking powder until smooth.", "Stir in spinach, onion, bacon, cheese and mushrooms.", "Melt butter into a baking dish. Pour mixture into dish.", "Sprinkle with crushed fried onion rings. Bake at 350\u00b0 for 30 to 35 minutes or until golden brown.", "Cool slightly and cut into small squares.", "Makes about 40 bars. Reheats well."]
["butter", "flour", "baking powder", "onion", "bacon", "Cheddar cheese", "onion rings", "eggs", "milk", "chopped spinach", "mushrooms"]