Spinach Squares - cooking recipe

Ingredients

2 pkg. frozen chopped spinach, thawed and drained
3 eggs
8 oz. Cheddar cheese
8 oz. Feta cheese
1 tsp. salt
1 tsp. baking powder
1 c. flour
4 Tbsp. butter
1 c. milk

Preparation

Mix beaten eggs, flour, milk, salt and baking powder; mix well.
Add cheese, onion and spinach and mix well.
Put butter in baking pan (9 x 13-inch) and put in oven for a minute to melt and spread in pan.
Spread mixture into pan and level.
Bake at 350\u00b0 for 35 minutes.
Cool 45 minutes before cutting.