If you continue on juices, green apples are always good, with a handful of spinach, parsley, a carrot...
If you want green juice recipes I've seen tons out on the net.
As we consider post-fast diet, I have stumbled on something I think is interesting. If you have time, check out http://www.fast-5.com
and download the free Little Book. When I first started reading I thought, "quack quack"... but read through, checked out credentials and came away very impressed. I am breaking straight onto this system to see how it fits. Seems tailor made for fasting types, particularly those of us concerned about putting weight back on.