Combine ground beef, ground pork, and chopped onion in a large skillet.

Cook until meat is browned, stirring to crumble.

Drain well on paper towels to remove excess fat.

In a bowl, combine the meat mixture with chopped fresh parsley, salt, and pepper.

Mix well to ensure even distribution of seasonings.

Thaw puff pastry according to package directions.

Cut the pastry into 3 1/2-inch circles.

Place about 1 tablespoon of the meat mixture on each pastry circle.

Moisten the edges of the pastry with water.

Fold the pastry in half, ensuring the edges are even.

Using a fork dipped in flour, press the edges of the pastry together to seal.

Place the filled bridies on a baking sheet.

Bake at 375°F (190°C) for 20 minutes.

Continue baking until the pastry is golden brown.

Brush the baked bridies with melted butter or margarine for added flavor and shine.