There haven't been too many cards that deal with eating in Magic. The only two I can think of right away are Grim Feast and Afiya Grove. The flavor of the grove is that there is some fruit there, and each turn a creature eats one and gets stronger. Grim Feast's flavor is, well, grim. The thing about Feast for the Ages is that there is enough food for everyone and as long they weren't doing anything else that turn, they can eat it.
Also: Works well with Vigilance, which happens to be right on color for this card.