The robbery occurred in the 1800-block of West Pershing Road at about 9 p.m. last Tuesday.
Three men walked into the restaurant armed with a handgun, took cash from the cash register and an iPhone and car keys from an employee.
The suspects fled the scene in a red Ford Escape model year 2013 or newer.
Anyone with information is asked to contact Area Central Detective Toner at 312-747-8227 or Area Central HQ at 312-747-8380.