Preheat grill.
Combine ground beef and barbecue sauce; mix well. Shape into 4 patties.
Grill patties over hot coals 4 to 6 minutes on each side until it reaches a temperature of 160° F - 70°C) or no longer pink inside. Brush occasionally with additional sauce during cooking period.
Top each patty with 2 cheese slices; grill for 1 more minute or until cheese starts to melt.
Remove from grill, place inside bun and top with bacon; serve immediately.
Servings: 4