Courtesy of Joan's on Third

"For several years after we opened, it wasn't that busy," recalls queen of comfort food Joan McNamara about her eatery, whose appearance on the list is a testament to just how casually the industry often dines. Fifteen years after its debut, the spot -- walk-up orders only -- is teeming with writing room staffers from such shows as Family Guy and Modern Family getting lunch on the go while young agents and producers talk shop at outdoor tables. Will Ferrell and Jane Lynch are regulars; Chiwetel Ejiofor was just in.