Chicken Salad with Rice without pesto spice

3 cups cooked shredded chicken 2 cups barbecue sauce 1/2 head iceberg lettuce , cored and chopped 2 romaine lettuce hearts , chopped 1/2 red onion , diced 1/4[...]

1 c. mayonnaise 1/4 c. thinly-sliced basil leaves plus more     for garnish 2 tsp herbal vinegar     (such as tarragon) 1/2 lb watercress stemmed, and    [...]