Well, it was a kind of not correct request. The directory is not US specific, the root url probably belongs in
http://dmoz.org/Recreation/Food/Dining_Guides/ as thats the world-wide category, if an editor decided the dining guide section of the site was the primary purpose of the site.
Personally I think this could be achieved by placing an @link from Recreation/Food/Dining_Guides/ to Society/Lifestyle_Choices/Vegetarianism/Directories/ and leaving the existing listing in Society. (Society/Lifestyle_Choices/Vegetarianism/Directories/ would appear to be a sub directory of Recreation/Food/Dining_Guides/) Disclaimer: I don't edit Society or Recreation.
Any Regional listings would be entirely at the discretion of an editor. You should not submit any sub sections of the site unless specifically told to by an editor. Repeatedly suggesting the site incorrectly is one of the few things that can have severe consequences for your listings.
:tree: