Create delicious Cantonese-style chicken lettuce wraps using a food processor to finely chop the chicken and vegetables. The food processor can be used to process the chicken into small pieces, along with ingredients like water chestnuts, mushrooms, and green onions. The filling is then stir-fried with soy sauce, hoisin sauce, and other seasonings. Serve the flavorful chicken filling in lettuce cups for a light and tasty appetizer or main course.