01 - Heat sesame oil in a large skillet over medium-high heat. Add ground chicken and cook for 3-4 minutes, breaking up the meat with a wooden spoon until no longer pink.
02 - Stir in garlic, ginger, green onions, carrots, and water chestnuts. Cook for another 2-3 minutes until vegetables are slightly softened.
03 - Add soy sauce, rice vinegar, honey, and black pepper. Stir well and cook for 2 more minutes until the mixture is fragrant and most liquid has evaporated. Remove from heat.
04 - In a small bowl, whisk together soy sauce, rice vinegar, honey, sesame oil, and chili garlic sauce if using. Set aside.
05 - Spoon the warm chicken mixture into each lettuce leaf. Top with sesame seeds, cilantro, and sliced chili if desired.
06 - Serve immediately with dipping sauce on the side.