Le Cheval 1007 Clay St./10th St.; downtown. Back to its original location, the cavernous dining room of this popular Vietnamese restaurant stretches over half a block and positively roars with animated diners. Large windows provide an even more open feeling, and namesake horses are prominent in the decor. Especially tasty selections on the classic French-Vietnamese menu include lemon grass chicken, curry-spicy Singapore-style thin noodles with veggies, soy sauce rice, clay pot fish, and clay pot prawns with mushrooms. Bananas flambé makes a spectacular dessert. Service is super-fast.