I found where I had read about Malabar spinach. It was in this magazine - the March-April issue of Texas Gardener.
And it wasn't an article but a tiny submission to the Problem - Solution column on the last page of the magazine.
This sounds ideal for our South Texas climate, and I am hoping to get some Malabar spinach plants from Zimmer's Nursery in September, when they will have them again.
Here is a really good article in the same magazine about a gardener in Corpus Christi. If you can find this issue anywhere it is really worth getting. They also had an article on the Corpus Christi Botanical Gardens.