Setting their table for 31, Alpha and Betty call their friends in for an alphabetical feast: ``Ben brought bagels...Don did dumplings,'' and so on, with some nifty longer improvisations: ``Norman knew that oodles of noodles would be needed.'' The extra five? Well, ``The triplets turned up with tacos,'' and young readers should enjoy finding the others. Trivas' lively multiethnic characters provide an extravaganza of delectable-looking comestibles. Delicious. (Picture book. 4-8)