My brother and I took the Bucktown/Wicker Park food tour and the Chinatown food tour. Foodie or not, I think anyone would enjoy this tour. Not only do you get to eat at local Chicago restaurants, but you also get to learn about Chicago culture along the way. During the Bucktown/Wicker Park tour, our guide, Carrie, would point out different architectural styles and taught us a little history about the neighborhood.
Same thing with the Chinatown tour - our guide, Hilary, did a great job educating us about different Chinese cuisine and also about the history behind Chicago's Chinatown. You also get coupons to the different restaurants visited during the tour. These tours are highly recommended! Do it when you're in Chicago!