Almost literally a hole in the wall, these guys do the best Banh Mi in the city, I figure. The ingredients are fresh, the true sandwich artists don't spare the toppings.
A couple of things to note:
1) you will wait at lunch time. There are no tables. A counter, a pop cooler, and some sammich makin' sorcerers are all you will see. If it is winter, you will wait outside in the cold. Prepare yourself accordingly.
2) cash only. That's it.
Have the peppered beef for a bit of spicy goodness. The spice, after all, must flow.