so one big problem with CSA style produce VS your friendly neighborhood supermarket is that A. you don't know what you'll get and B. what you do get will be seasonal. what if you want tomatoes in the winter? I'd suggest you look into two things
- dehydration
get yourself a dehydrator and start making apple chips, fruit leathers, sun dried tomatoes, and lots more. this is a great way to make the most of your CSA boxen. dehydrate a bunch of fresh made tomatoe sauce in the summer, put it in a baggie in the freezer, pull it out mid-winter and it'll still taste amazing. - preserving and canning
learn how to make your own relishes, pickles and preserves. nothing adds zest to a winter meal like home-made preserves and relishes prepared from last summer's produce. it's more time intensive than dehydrating is, but very satisfying and worth the effort. it's also works better with greens than dehydrating does.