The first American restaurant to use printed menus was Delmonico’s Steak House in New York City in 1837. They also created many dishes including Lobster Newburg, Oysters Rockefeller, Eggs Benedict, and, of course, Delmonico’s Steak. In 1838 their menu had grown to 100 pages.
Source: http://www.softcafe.com/menu-trivia.htm
A Restaurant Factoid provided by Restaurant Expert Witness, Howard Cannon