With a little ingenuity you can do what some would say is impossible.

Having a back yard food garden in the middle of the desert in Phoenix. Built on an old swimming pool

But this couple did it and blogged about it and eventually whent on to form a non-plofit organization to help others do the same.

In this video they will show you their garden complete with the fish, chickens and now some goats.

Have a look – this might be exactly what you are looking for.