Can't decide what you want for lunch? You're in luck. This spot now marries three favorites. One half of the operation houses Halsted Street Deli, a popular lunch destination for overstuffed sandwiches; the other features a new version of retro burger chain Johnny Rockets, offering Chicago-style classics such as hot dogs and Italian beef sandwiches, along with quick-order versions of single or double bacon cheddar burgers, onion rings, chili cheese fries and other menu faves. They also mix shakes in a variety of flavors.