RJ Grunts

If you’re looking for that old-school vibe, R.J. Grunts is your spot. The restaurant opened in 1971 and hasn't changed its decor much since, with wooded details throughout plus an endless stream of funky throwback tunes to set the mood. When it comes to burgers, their classic Hamburger is a go-to, served alongside a mound of cottage fries, and a pickle, because of course. Non-beef burgers include a pepper jack cheese topped veggie burger and a tomato, lettuce, mayo, and Swiss cheese turkey burger. Afterwards, meander to nearby Lincoln Park Zoo and the lakefront to walk off the feast.