This site specializes in food items from polymer clay, and has many projects. Check out the awesome cooking onions and green onions!
http://www.toddtoysandminiatures.com/projects.html

Wanna's GD Laura makes a wonderful bakery with items from Wanna's Stash:
http://www.wannainelpaso.com/childrensprojects/lauras_bake_shop.shtml