Spinach Quiche - cooking recipe

Ingredients

1 pkg. frozen chopped spinach
8 oz. shredded Cheddar cheese
6 oz. shredded Swiss cheese
4 Tbsp. margarine
3 eggs
1 c. flour
1 c. milk
2 Tbsp. chopped onion
1 tsp. salt
1 tsp. baking powder

Preparation

In a 13 x 9-inch pan, over very low heat, melt margarine. Whisk in salt, baking powder and flour.
Mix egg and milk; add to mixture.
Mix well.
Stir in cheeses, spinach and onion.
Bake at 350\u00b0 for 35 minutes.
Cut into small squares.