If you ask Vince Valenza for the origin story of Blues City Deli (2438 McNair Avenue, 314-773-8225), you might think it begins with a fateful trip to New Orleans for a work conference that inspired him to begin making muffalettas at home, or even his turn as a blues musician, which gives the deli its musically inflected spirit. In actuality though, the roots of the sandwich shop go much deeper. "It goes back to when I was a child — not that I thought I was going to open a deli someday, but because we had this tradition on Saturdays of sitting around the table for lunch," Valenza explains.