Prepare Lettuce u0026 Sauce : Wash and dry lettuce leaves; set aside. In a small bowl, whisk together hoisin sauce, soy sauce, rice vinegar, sriracha, and sesame oil.
Cook Chicken : Heat vegetable oil in a large skillet or wok over medium-high heat. Add ground chicken and cook, breaking it up with a spatula, until no longer pink (about 5 minutes).
Add Aromatics u0026 Vegetables : Stir in garlic, ginger, and onion; sauté for 1–2 minutes. Add mushrooms, carrots, and water chestnuts. Cook until tender.
Add Sauce : Pour prepared sauce over the mixture. Stir well to coat everything evenly. Let simmer for 2–3 minutes to blend flavors.
Assemble Wraps : Spoon chicken mixture into lettuce leaves. Garnish with green onions, peanuts, sesame seeds, or cilantro.
Serve u0026 Enjoy : Serve immediately with extra sauce on the side.