Late fall/winter gardening in zone 6

What vegtables are hardy to survive into late fall (Novemember/December) in a zone 6 garden? Any ideas?
Thanks!

i'm zone 6 but not sure about the question i see farmers still have cabbage right now...

Hi Dan,
Any of the cool season veggies can be kept going into winter with proper protection. Take a look here.

http://www.extension.umn.edu/info-u/plants/BG437.html
http://www.fourseasonfarm.com/default.html

Newt