In this Thursday, Feb. 6, 2014 photo, a packet containing a slice of prototype pizza is displayed by public affairs officer David Accetta at the U.S. Army Natick Soldier Research, Development and Engineering Center, in Natick, Mass. Pizza is in development to be used in individual field rations known as meal ready to eat, or MREs. It has been one of the most requested options for soldiers craving a slice of normalcy in the battlefield and disaster areas. (AP Photo/Steven Senne)