Grow, cook it, eat it! Check out an excellent article about urban agriculture over at Organic Consumers Association. The authors website is Homegrown Evolution.
That's their book on the left. It looks interesting, I might have to read it.
Here is an excerpt from the article at OCA;
"The idea of urban farming is nothing new. Back in the days before freeways and refrigerated trucks, cities depended on urban farmers for the majority of their fresh food. This included small farms around the city, as well as kitchen gardens. Even today, there are places that hold to this tradition. The citizens of Shanghai produce 85% of their vegetables within the city, and that's just one example of a long Asian tradition of intense urban gardening. Or consider Cuba. Cubans practiced centralized, industrial agriculture, just as we do, until the collapse of the Soviet Union in 1989. Overnight, Cubans were forced to shift from a large, petroleum-based system to small-scale farming, much of it in cities. Today, urban organic gardens produce half of the fresh fruits and vegetables consumed by Cubans.
The United States once was a nation of independent farmers. Today most of us do not know one end of a hoe from the other. In the last half of the 20th century, a cultural shift unique in human history came to pass. We convinced ourselves that we didn't need to have anything to do with our own food. Food, the very stuff of life, became just another commodity, an anonymous transaction. In making this transition, we sacrificed quality for convenience, and then we learned to forget the value of what we gave up."