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

On a floured surface, unfold the thawed puff pastry sheets and slice them into strips approximately 1 inch wide.

Slice the cooked ham into strips and shred or cut the cheese to match the pastry size.

Take each pastry strip, add ham and cheese on one half, and fold the other half over, sealing the edges.

Transfer the assembled sticks onto the prepared baking sheet, ensuring they are spaced apart.

In a small bowl, whisk together the egg and water, then brush the tops of each stick with the mixture.

Sprinkle the optional seasonings over the egg-washed pastries if desired.

Bake the sticks for 15-20 minutes or until golden brown and the cheese is melted.

Let cool for about 5 minutes before serving to set the filling.