So you've looked at the picture of Spanakopita and read the recipe several times. Now you're having conversations with yourself, wrestling whether or not you're comfortable working with Phyllo. Or perhaps, you made "pita" using my recipe and loved it but think it takes just enough effort to reserve making it only on special occasions. Don't deny yourself. You can substitute puff pastry for phyllo resulting in an incredibly satisfying treat that can easily be made anytime, even if it's just for family and close friends. Be assured, special guests will love this simple recipe just as well!
Puff pastry sheets are a very convenient substitute. The 17.3 oz. package of puff pastry is close to the weight of the one-pound phyllo used in my recipe above. Phyllo has two sealed packages of 9" x 14" sheets. Puff pastry has two sealed inner packs of single sheets. They can easily be rolled to 9" by 14" and you can use the same size rimmed cookie sheet.
Note: Place a larger cookie tray on the shelf below or line it with aluminum foil to prevent the bottom sheet of pastry from burning if using vegetable oil spray.