ALL menus you find online - except those at disneyworld.com, and that is a new and very incomplete feature - are UNofficial. They are courtesy of the various sites, and generally provided to the sites by site users who ate at the restaurants and were able to obtain and submit menus.
Menus change much more frequently than they are sent to the various sites. The Abbondanza has been off the Tutto Italia menu for a long time.
So, respectfully food4me - I disagree with you. While it's nice to have an idea of what a restaurant serves, I really don't want to have the exact same menu year after year after year...