01 - Combine ground chicken, chopped onion, garlic, soy sauce, grated ginger, salt, and pepper in a large bowl. Mix until ingredients are evenly distributed throughout the meat.
02 - Divide the seasoned chicken mixture into 4 equal portions. Shape each portion into a uniform burger patty, ensuring even thickness for consistent cooking.
03 - Heat grill or grill pan over medium heat. Lightly brush the cooking surface with olive oil to prevent sticking.
04 - Place patties on the preheated grill. Cook for 5 to 6 minutes per side until fully cooked with clear running juices and internal temperature reaches 165°F. If adding cheese, place a slice on each patty during the final minute of cooking and cover to melt.
05 - While patties cook, place pineapple rings on the grill. Cook for 2 minutes per side until light caramelization marks appear.
06 - Place burger buns cut-side down on the grill for 1 to 2 minutes until golden brown and lightly crispy.
07 - Spread barbecue sauce on the bottom half of each toasted bun. Layer with lettuce, tomato slices, cooked chicken patty, grilled pineapple ring, and red onion. Top with the remaining bun half.
08 - Serve immediately while hot. Accompany with sweet potato fries, coleslaw, or your preferred side dish.