Spinach Squares
["2 Tbsp. margarine", "3 eggs", "1 c. milk", "1 c. flour", "1 tsp. salt", "1 tsp. baking powder", "1 lb. mild shredded Cheddar cheese", "2 pkg. fresh or frozen spinach", "1 onion, chopped"]
["Preheat oven to 300\u00b0.", "Put margarine in an 8 x 10-inch baking dish and melt in oven.", "Remove.", "In a large bowl, beat eggs well, then add flour, milk, salt and baking powder.", "Mix well. Add cheese, spinach and onion.", "Mix well. Put into baking dish. Bake at 350\u00b0 for 35 minutes.", "Cut into squares when cooled, about 20 minutes.", "Preparation time: 10 minutes."]
["margarine", "eggs", "milk", "flour", "salt", "baking powder", "Cheddar cheese", "frozen spinach", "onion"]