Spinach Brownies - cooking recipe

Ingredients

1 c. plus 1 Tbsp. flour
1 tsp. salt
1 tsp. baking powder
2 eggs, beaten
1 c. milk
1/2 stick margarine, melted
1 pkg. frozen, thawed, drained spinach
1/2 c. finely chopped onion
3/4 lb. shredded Cheddar

Preparation

Pour into greased 13 x 9-inch pan and bake at 350\u00b0 for 30 to 35 minutes.