Dien is a small Vietnamese restaurant near the Yeoksam Tax Office intersection in Gangnam-gu, Seoul, serving pho, fried rice, and chả giò. The basic pho comes with meat toppings and a broth that is savory and slightly sweet, and there is also a set with fried rice and pho together. Cilantro and bean sprouts can be requested separately, and food comes out quickly at lunch as well. There are not many tables, so customers crowd in during lunch hours and waits grow long later on.