McDonald’s declared that its experiment with plant-based burgers was a disaster. Joe Erlinger, who heads US operations for the Chicago-based fast food giant, told a business conference that the company discontinued the pilot program after customers in San Francisco and Dallas-Fort Worth panned the McPlant. The McPlant “was not successful in either market,” Erlinger told the Wall Street Journal’s Global Fast Food Forum in Chicago on Wednesday. “I don’t think the US consumer is coming to McDonald’s or looking for McPlant or other plant-based proteins from McDonald’s now.” The executive added that McDonald’s won’t be reintroducing salads to its menu...