In a bowl, marinate the diced chicken thighs in teriyaki sauce for at least 15 minutes to absorb the flavors.
Heat sesame oil in a skillet over medium heat. Add the minced garlic and ginger, sautéing until fragrant, about 1 minute.
Add the marinated chicken to the skillet, cooking until browned and cooked through, about 6-8 minutes. Stir occasionally to ensure even cooking.
Once the chicken is nearly cooked, stir in the diced red bell pepper and shredded carrots. Continue to cook for another 2-3 minutes until vegetables are softened.
Remove the skillet from the heat and stir in chopped green onions. Season with salt and pepper to taste.
To assemble the wraps, take a lettuce leaf and spoon a generous portion of the teriyaki chicken mixture into the center.
Sprinkle with sesame seeds for added crunch and flavor.
Roll up the lettuce leaf and enjoy your Teriyaki Chicken Lettuce Wraps fresh and warm!