You might want to head over to
LogoPond and do a search for what you are seeking.
There's also an article I wrote about designing restaurant logos at Creative Latitude:
Designs on Dining
Just yesterday I got a copy of the new book
1000 Restaurant Bar & Cafe Graphics: From Signage to Logos and Everything in Between. It's a whole book of restaurant design eye candy and inspiration. It just hit the bookstores here in the U.S.
Good luck with the project.