I've been here several times and am always impressed. The ingredients are fresh, the menu is well-developed and the price is right!
You simply must try each variation of the steamed bao. The flavours work together wonderfully and the crunch of the veggies contrasts well with the soft steamed bun. For a unique (and calorie-rich) treat, try the kimchi fries. If you want something light and refreshing, get the jicama papaya salad. You can also get an entree salad that has chicken or duck confit.
Of course, you can't go to a place called Banh Mi Boys without trying the banh mi! These Vietnamese sandwiches are flavourful and filling.
The restaurant itself is quite small and has a casual diner feel. There isn't much seating space, but most people seem to take their food out anyway since the banh mi are perfect snacks for eating on the go.