01 - Combine ground chicken, chopped onion, garlic, soy sauce, grated ginger, salt, and pepper in a large bowl. Mix thoroughly until all ingredients are evenly distributed.
02 - Divide the chicken mixture into 4 equal portions and shape each into a uniform patty, approximately 3/4 inch thick for even cooking.
03 - Heat grill or grill pan to medium temperature. Lightly brush the cooking surface with olive oil to prevent sticking.
04 - Place patties on the grill and cook for 5 to 6 minutes per side until fully cooked through with clear juices. Internal temperature should reach 165°F. If adding cheese, place slice on patties during the final minute and cover to melt.
05 - Grill pineapple rings for 2 minutes per side until lightly caramelized and marked, enhancing their natural sweetness.
06 - Place burger buns cut-side down on the grill for 1 to 2 minutes until golden brown and lightly crisped.
07 - Spread barbecue sauce on the bottom bun. Layer with lettuce, tomato slices, cooked chicken patty, grilled pineapple ring, and red onion. Crown with the top bun and serve immediately.