1 pkg. frozen spinach, thawed and drained
1 stick butter, melted
2 eggs, beaten
1 c. flour
1 c. milk
1 lb. grated Cheddar cheese
1/2 c. chopped onion
1 tsp. salt
1 tsp. baking powder

Mix all ingredients together. Pour into a greased 9x13 inch pan. Bake 30 minutes at 350 degrees. Cut into squares.