BBQ burger with marbled beef, sausages, and bacon

Sesame bun, butter, mozzarella cheese, beef patty, sausage sauce (ketchup, barbecue sauce, wine vinegar, brown sugar, cayenne pepper, honey, ground pepper, dry garlic, ground ginger), chicken sausage, marinated red onion (red onion, wine vinegar, salt, sugar), potato chips, mustard sauce.