This refreshing salad is a symphony of tastes, colors and textures. Fish sauce, known as nuoc mam in Vietnam, gives the dressing savory, umami-rich underpinnings, while lime juice, sugar and garlic punch up the flavors. The jalapeños add moderate spiciness; if you prefer mild heat, seed the jalapeños before slicing them. Store-bought rotisserie chicken makes this salad simple to prepare; a small to average-size bird yields about 3 cups of shredded meat. The finished salad can be covered and refrigerated up to an hour.