Preheat your oven to 400°F (200°C). Roll out the puff pastry onto a lightly floured surface to about ¼ inch thick.

In a bowl, mix grated Parmesan, shredded mozzarella, chopped spinach, garlic powder, salt, and pepper until well combined.

Cut the pastry into strips, add filling, fold over and twist ends tightly.

Place on a baking sheet and bake for approximately 18 minutes until golden brown.

Let cool for 5 minutes before serving with marinara or garlic butter.