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

Roll out the puff pastry on a lightly floured surface to about ¼ inch thick. Cut into 4x6 inch rectangles.

In a mixing bowl, combine whisked eggs, cheese, crumbled bacon, caramelized onions, herbs, and seasonings. Stir until well incorporated.

Take one pastry rectangle and spoon filling onto one half, leaving a ½-inch border. Fold the other half over and press down to secure.

Crimp the edges of the pastry with a fork to seal in the filling.

Brush the tops with an egg wash made from whisked egg and a splash of milk.

Bake for 18-22 minutes until puffed and golden brown. Allow to cool on a wire rack.