01 -
Preheat the oven to 375°F (190°C). Line a baking sheet with parchment paper.
02 -
Squeeze excess moisture from the spinach. Mix the spinach, cream cheese, mozzarella, garlic powder, and onion powder in a bowl until well combined.
03 -
Roll out the puff pastry and cut it into squares. Spoon the spinach mixture into the center of each square. Fold the pastry over to form a triangle, sealing edges with a fork.
04 -
Beat the egg and brush it over the puffs for a golden finish.
05 -
Place the puffs on the prepared baking sheet and bake for 20-25 minutes, or until golden and puffed.