Mix the ground chicken meat, chopped mushrooms and water chestnuts with all the Marinade ingredients. Set aside for 15 minutes.
Heat up a wok or pan and add the cooking oil. Saute the garlic until light brown and then add the chicken. Stir-fry the ground chicken and break up the lumps so they form into nice small pieces. Continue to stir-fry until the chicken is cooked, then set aside.
Carefully peel off the lettuce leaves from the iceberg lettuce head. Be careful not to break the leaves. Scoop up a big spoonful of chicken and place it in the middle of a lettuce leaf.
Top the chicken with some fresh cilantro, dried rice noodles (great for some added crunch!), carrots and a squeeze of lime juice. Wrap the lettuce leaf around the chicken, like a burrito, and dip into the hoisin sauce or sweet chili sauce before eating.
You can also drizzle some sauce on top, instead of using them as dips. Or you can do both!