Combine ground pork, breadcrumbs, egg, salt, and Worcestershire sauce in a bowl.

Mix thoroughly until well combined.

Place a sheet of waxed paper on a clean surface.

Pat the meat mixture into a 10x7 inch rectangle on the waxed paper.

In a separate bowl, combine sauerkraut and chopped onion.

Spread the sauerkraut and onion mixture evenly over the meat rectangle.

Starting from the narrow side, roll up the meat into a jelly-roll shape.

Place the rolled loaf in a shallow baking dish.

Arrange bacon slices across the top of the loaf.

Bake in a preheated oven at 350°F (175°C) for 40-45 minutes, or until the bacon is crispy and the pork is cooked through.