This time of year, you can only plant 'cold season vegetables'
So example, no tomatoes, squash basil melons.
In the winter I usually plant
-onion/garlic pods(they will produce greens throughout the winter, then next fall they will produce the whole onion)
Here is a link to a website I have found useful http://ag.arizona.edu/pubs/garden/mg...ble/index.html
Also, the most amazing gardening book is called, "Vegetable Gardening for the Arid Southwest" It is out of print, but is the most useful gardening book I have ever had. My copy was ruined, so if anyone has a copy or knows where to get one, please PM me. They use to carry it at Native Seed Search, but I believe they no longer do.
Let me know if you have more questions, I have gardened here for the past 5 years, and have done A LOT of research.