Chicken Mixture 3 T oil 1 lb ground chicken or turkey 1 c water chestnuts 2/3 c mushrooms 3 T chopped onions 1 tsp minced garlic  Special Sauce 1/4 c sugar 1/2 c water 2 T soy sauce 2 T rice wine vinegar (I used other vinegar) 2 T ketchup 1 T lemon juice 1/8 tsp sesame oil 1 T hot mustard 1-2 tsp garlic and red chili paste  Stir Fry Sauce 2 T soy sauce 2 T brown sugar 1/2 tsp rice wine vinegar (I used other vinegar)  1 head iceburg lettuce rinsed and quartered  There are a bunch of new-fangled instructions for these but basically what you do is:   Special sauce:  Stir together all but the hot mustard and garlic/red chili paste and set it aside.   Stir fry sauce:  Mix together all ingredients.  Chicken mixture:  Brown the chicken and add all the rest of the ingredients and the stir fry sauce and saute for a couple of minutes.   To serve, put all ingredients on the table and let everyone assemble the wraps for themselves as they do in the restaurant.  If you...