If you're looking for something different to do in River North this weekend, here's one for the food lovers. The Iconic Foods of Chicago Food Tour is happening this Saturday and takes guests on a three-hour walk through River North and Streeterville, with some very important stops along the way. We're talking: 🍕 Deep dish at Lou Malnati's 🥩 Italian beef at Al's Beef 🌭 A classic Chicago-style hot dog at Portillo's 🍿 Garrett Popcorn 🍫 Plus a Chicago-invented dessert And th