* (10-ounce package)chopped spinach hawedpressed dry ** (12-ounces) Muenster cheese Saute onion in oil in a large skilet until tender. Add spinach, and cook until excess moisture evaporates; cool. Combine eggs, cheese, salt and pepper; stir into spinach mixture. Pour into a greased 23 cm pie plate. Bake at 350^ for 30 minutes or until set. YIELD: One 23 cm Quiche.