The pizza place Todd wrote about is near Le Meridien. We ate there twice and found that a large pizza (12" thin crust) and a large salad was plenty for the 2 of us. With 2 cokes it was about $20 - $25 (in 2002).
Near Le Meridien was a little grocery store and we bought french bread and some cheese for lunch one day. They had fresh fruit, milk, slightly larger than a 7-11. I'm sure there are groceries all over the place and you should be able to get lunch fixens at any of them.
