Crustless Quiche - cooking recipe

Ingredients

1 c. flour
1 tsp. salt
1 tsp. baking powder
6 Tbsp. melted margarine
1/2 medium chopped onion
4 eggs
1 c. milk
1 (10 oz.) pkg. spinach, thawed and drained
1 lb. grated Cheddar cheese

Preparation

Mix well the flour, salt and baking powder.
Add the remaining ingredients.
Mix very well by hand.
Pour into a greased 9 x 13-inch pan.
Bake at 350\u00b0 for 30 minutes.