Ok it's not really Sacto, it's West Sac. But this is by far the best Thai restaurant in the area. From the outside it's nothing to look at (nothing from the inside either). It's located just outside a motel. But the food is to die for. The Tun Yum Kung is full flavored, heat adjusted for Thai people. The yellow curry is not too hot but just right. And you must try the desert of coconut icecream and sweet sticky rice, paired with fresh mangos.
Vientiane, 2480 West Capital Ave., West Sac.