Saigon Cafe located in old historic Wailuku town is by far the best Vietnamese restaurant on Maui.
They boast a huge menu of Vietnamese favorites, famous Naokee steaks, and fresh seafood.
The deep fried Opakapaka (snapper)
They also feature an extensive vegetarian menu.
The food is always very fresh.
The portions are large and the prices are quite reasonable.
Many of their lunch plates are under $10
The Green Papaya Salad with jumbo shrimp is the best I've tasted anywhere. Reservations are a good idea for weekend evenings; they do a brisk business.