Izzy D pretty much has it covered, but I'll reiterate anyway. This little food cart has the most amazing burrito-sized avocado spring roll! For $2.50!!! When is the last time you ate lunch out for $2.50?!?!
Yes, it has no meat in it, but I have taken many a carnivore to get a spring roll here and every one of them has loved it. Next time you're at Library Mall and don't feel like waiting in the endless line for Banzo, go get yourself a spring roll at Luang Prabang. Trust me, you won't be disappointed.
The only reason this isn't a 5-star review is that I've never tried anything else at this cart, so I have no idea how anything else is. I've been here a bazillion times and can't get myself to try something other than the awesome avocado spring roll.