Thank you all for the suggestions. I'll pass them along to the chaperones.
I am looking for some suggestions for lunch, within walking distance to the Disney Concert Hall on S. Grand Ave (in LA). It's for a group of pre-teens/teens on their own, during lunch break, with adult chaperones and they would not have any transportation to and from the Hall, so walking distance is a must and within reasonable price range would be great ($10-15).
They will have a dinner break at California Pizza Kitchen, so I thought something different than Italian for lunch and maybe other than the Concert Hall Cafe w/in the Hall, for those with a bit more time to leave the Hall.