Cut off the stem of lettuce, remove outer pieces of lettuce and throw away. Pull apart leaves and rinse with cold water. Set aside.
Step 2
Mix together all ingredients for Thai sauce in small bowl. Set aside.
Step 3
Heat the oil in large sauté pan over medium heat. Add the onion and ginger and cook, stirring frequently, until soft, 4-5 minutes. Add the ground chicken and turn the heat up to high. Cook, breaking up the meat with a wooden spoon, until partially cooked through, about 5 minutes. Add the garlic and cook 1 minute more.
Step 4
Add the Thai sauce to the chicken and cook for a few more minutes. Take off heat. Stir in the scallions, cilantro, mint, peanuts, and shredded carrots. Taste and adjust seasoning if necessary. Spoon into lettuce cups and serve with a lime wedge