Preheat your oven to 400 °F (200 °C) and line a baking sheet with parchment paper.

Roll out the thawed puff pastry on a lightly floured surface and cut it into 3-inch squares.

In a mixing bowl, combine cream cheese, shredded mozzarella, parsley, chives, thyme, garlic powder, salt, and pepper until smooth.

Place about 1 tablespoon of the cheese mixture in the center of each pastry square and fold over to seal.

Arrange filled pastries on the baking sheet and brush with beaten egg for a golden finish.

Bake for 18–22 minutes until golden brown and puffed.

Let cool for a few minutes before serving warm.