O'Shaughnessy's is a fast food restaurant. The chain has stores nationwide and is rivaled by Big Belly Burgers. History This article is a stub. You can help DC Database by expanding it. See Also Appearances of O'Shaughnessy's Location Gallery: O'Shaughnessy's Catalogued images related to O'Shaughnessy's Retrieved from "https://dc.fandom.com/wiki/O%27Shaughnessy%27s?oldid=2583811" Categories: Locations History Section Needed New Earth Locations Milky Way Sol Earth United States of America Chain Restaurants Businesses Community content is available under CC-BY-SA unless otherwise noted.