Duh. The kitchen's on the way to the library.

[Or it can be, given a little creative maneuvering.]

What do you mean, you don't need pie? I don't need pie either. No one needs pie. But you get hungry after fighting, and if you're gonna eat something, it should be something delicious.

[This is logic, Yuan. Plain and simple. So said, Zelos steers the pair of them back into the castle, leaving a lot of confused guards behind them.]