If you are studying Vietnamese in Hochiminh City, you should try Cơm hến (mussels rice), originally from Hue. Mussels and rice is simple but noble, and very flavorful. The dish is made from white rice, cooked and cooled. After a layer of mussel meat with , and fried greases is added. It is served with salad, bean sprouts, green banana, white shredded taro, and roasted peanuts. Mussels and rice is quite cheap, only 10,000vnd and can be found basically everywhere. Give it a try!