I have found a wonderful food co-op (they call it a food lobby/buyers club.) It has been running for a few years and we are looking to expand we want more people to join!!
It's at the eco-village off of Vermont and 1st street if interested you can e-mail me and I will help you get started! nancyk70@yahoo.com
The boxes of locally grown organic food are $20 and they say it will feed 2 to 3 people for one week. I get about a week worth of smoothies from the greens and veggies.

Update:
Here is what I got for $20.00 on Sunday
3 quarts strawberries
12 small zucchini
13 tomatoes
2 long cucumbers
9 turnips with greens
1 beet root with greens
1 med. daikon radish
2 heads romaine lettuce
2 heads red leaf lettuce
2 bunches of lemon basil
2 pounds of broccoli