Time Out says
All the food at this truck is cooked on-site and made to order, thanks to a Park District permit that not all Humboldt trailers seem to care much about (we're talking to you, grease traps). Take advantage of it by scooping up a piping-hot Philly cheesesteak, Polish sausage or all-beef frank; a good deal at $4 with a side of hand-cut fries. Walking the pooch to get your dog? Truck staff doles out gratis puppy treats to four-legged friends.