Louis' vies for title of burger birthplace 2.15.07
Jeff Lassen of Louis’ Lunch said his family has been serving the same hamburger — a grilled beef patty on white toast, with optional tomatoes, onions and cheddar cheese spread, but absolutely no ketchup — since his great-grandfather invented the iconic sandwich over 100 years ago. But the Lassen family’s story is only one of several about the origin of what Lassen called “America’s food.”