Most of my food seems to be O'Hare area where I work, and then Lincoln Square where I live.
Hot dog/burger stands - Paradise Pup, Bob-O's, Redhot Ranch
Upscale burgers/beer - Bad Apple
Pizza - Lou Malnati's, Spacca Napoli, Roots
Italian - Anteprima
Thai - Aroy, Rosded, Rainbow, PNA
Chinese - Mei Shung, Katy's, Go 4 Food
Dim Sum - Dolo, Ming Hin
Indian - Maharaja (lunch buffet)
Vietnamese sandwiches - Nhu Lan
Cheesesteaks - Monti's
Bakery - Cellar Door Provisions
Middle Eastern - Salam, Noon O Kebab
Deli - Steingold's (already been a few times), New York Bagel & Bialy
Japanese/Sushi - Ora has become my new go-to for sushi, Mitsuwa for lunch
Seafood - Boston Fish for lunch
Gyros - Wally's (Park Ridge - very good spinach pies & cheese pies and solid fries too)
Tacos - Taqueria El Asadero
Winter is coming - Laschet's...though rarely in warm weather
Korean - San Soo Gab San, Cho Sun Ok