Fast-food workers at several restaurants in New York walked off the job on Thursday…in…the biggest effort to unionize fast-food workers ever undertaken in the United States. The effort…has engaged…workers at McDonald’s, Wendy’s, Domino’s, Taco Bell [part of YUM!] and other fast-food restaurants…Leaders…said that workers were walking off the job to protest what they said were low wages and retaliation against several workers who have backed the unionization campaign…McDonald’s [said]. “McDonald’s values our employees and has consistently remained committed to them, so in turn they can provide quality service to our customers,”…It added that the company had an “an open dialogue with our employees” and always encouraged them to express any concerns “so we can continue to be an even better employer.”…TCB Management… and Lewis Foods [both McDonald’s franchises]… did not respond to inquiries… a Domino’s Pizza spokesman, said the few efforts to unionize its stores and drivers had fallen flat.