The FukuBurger Truck is a 1 of a kind, you have to turn around and go back to try them if you see them on the street. I've eaten at their truck 5 separate times now and that includes twice in one day, as well as two days in a row and I still have the desire to go back.
They have a regular hot spot in China town so if you are down there around 8:30 swing by and treat yourself to one of the best burgers you will ever have as well as be entertain by all the custom cars and stereos that are on display;
The Food is amazing and I have no idea how they make their burgers so light and full of flavor; the fries are good but the gravy/sauce they put on them is a little weird but growing on me now that I've had it a few times. Tried the Naga dog the last time I was there and it was one of the best hotdogs I've ever had. Id put it up there with a Wriggly field dog and I'm a Cubs fan!
I'm going to have to see if I can't convince my employer to hire them or at least convince them its worth their while to stop by my building for a lunch sale.
Oh and don't forget the funny name for your order; it is hilarious standing around listening to them being yelled out and its even better when the cook is embarrassed by them so the dirtier they are the better!