Run, Strongest Army! Toriko, Luffy, and Goku!

Synopsis

A cross-over special with One Piece and Dragon Ball Z. The IGO is hosting a World's Best Eating Tournament, a merciless race with no rules, on a certain island. The tournament's championship prize is the luxuriously rare Carat Sizzled Cattle. Toriko and his friends are aiming for the championship, Luffy and his Straw Hat Crew is set to participate in the event as well, and Son Goku and his friends are also contestants. The showdown may determine the strongest of the three franchises' leads. (Source: Wikipedia)