Preheat your oven to 400°F (200°C).

In a mixing bowl, combine softened cream cheese, shredded mozzarella and cheddar blend, fresh herbs, garlic powder, salt, and pepper.

On a lightly floured surface, roll out your thawed puff pastry until it's about 1/8 inch thick. Cut into 3-inch squares.

Place about 1 tablespoon of filling in the center of each square, fold and seal the edges with a fork.

Transfer the pastries to a parchment-lined baking sheet, brush with egg wash, and bake for 15-20 minutes.

Remove from oven and let cool for a couple of minutes before serving warm.