Prep Oven and Ingredients: Preheat oven to 375°F (190°C). Dice onion and green pepper finely. Slice mozzarella cheese.

Mix Meatloaf: In a large bowl, combine ground beef, eggs, breadcrumbs, onion, green pepper, mustard, parsley, garlic powder, paprika, salt, and pepper. Mix gently until just combined.

Shape and Stuff: Press half the meat mixture into a 9×5 loaf pan. Create a well in the center and add mozzarella. Cover with remaining meat and seal edges.

Wrap with Bacon: Remove meatloaf from pan and wrap completely with bacon slices. Return to pan or place on lined baking sheet.

Bake: Bake for 35 minutes. Brush with barbecue sauce and bake 10-15 minutes more until internal temperature reaches 160°F (71°C).

Rest and Serve: Let rest 10 minutes before slicing to allow juices to settle.