In Prep Bowl, whisk together seasoning, soy sauce, and water.
In Wok, heat oil over medium-high heat. Add chicken and seasoning mixture, using Ground Meat Separator to break up chunks; stir-fry until browned, about 4 min.
Meanwhile, dice zucchini and coarsely chop mushrooms. Add zucchini, mushrooms, and carrots to wok. Stir-fry 4 min, or until chicken has cooked through and veggies have softened.
To assemble, make eight stacks of two lettuce leaves. Top each stack with about 1⁄2 cup of chicken and veggie filling. Drizzle with toppings, if desired.