The result? Dave's Hot `N Juicy, named after late Wendy's founder Dave Thomas. The burger -- with extra cheese, a thicker beef patty, a buttered bun, and hold the mustard, among other changes -- will be served in restaurants starting Monday.
"Our food was already good," said Denny Lynch, a Wendy's spokesman. "We wanted it to be better. Isn't that what long-term brands do? They reinvent themselves."