Well buddha was a kshatriya prince before he became buddha so it must be true that he ate meat... also there is one tale regarding his passing away which involves a meat preparation
http://zencomp.com/greatwisdom/ebud/ebdha192.htm
"In the Mahaparinibbana Sutta, we are told that the Buddha became ill suddenly after he ate a special delicacy, Sukaramaddava, literally translated as "soft pork", which had been prepared by his generous host, Cunda Kammaraputta."