[quote=@Caits]
They could have got food from the guild...

Jamie wouldn't have sent them out without food
[/quote]

Fairly True, but this is Zero. 
You know... 
The guy who just spoke about not trusting people because he doesn't really know them. 
Maybe Zenoram would have asked, but... Meh... Besides... He could hunt and Zenoram could cook anyway XD
Also... It's not that long of a journey to Mt. Hakobe by Carriage is it? 
Furthermore, he wouldn't be eating to much while travelling. XD