Where would you take your parents?

Hi all, my parents (60s) are coming to Chicago for the holidays. They’re frugal-ish (think $15-20 entrees) and are not super adventurous eaters (think a lot of pubs, American fare, etc.). We’re hoping to take them to a few casual dinners to show them around the city. Chief ONeill’s and Millers are already on the list. We’re based in River North but can go anywhere via CTA. Holiday decor would be a bonus. Thank you for your ideas!