Yield: 54 squares
Beat eggs. Add flour, baking powder, salad dressing mix and butter; add grated cheese and spinach. Spread evenly into a 9x13 inch pan coated with cooking spray. Bake for 30 minutes at 350 F. Cool for at least 30 minutes, then cut into squares. Add dollop of sour cream to top of each square (optional).
Please note that some ingredients and brands may not be available in every store.