Ditch the four walls, head outside, and get your fill of those portable powerhouses known as food trucks. Jeff Mauro gets happy about an angry lobster sandwich from the Happy Lobster Truck in Chicago. Sabin Lomac puts the pedal to the metal for The Bacon Truck's bacon mac and cheese bites in Boston, and nothing is going to slow down Ali Khan as he speeds towards the best food on wheels at LeRoy and Lewis Barbecue in Austin, Texas.