In my local Mexican Supermercado this weekend I saw some strange spiny things. I asked one of the guys who worked there, and he told me it was chayote. When I looked carefully, I could see that under the spines was something that indeed looked like the chayote I'm used to seeing.
So I guess the question is, is the spiny version different from the smooth variety I'm used to? Are there specific ways the spiny version is prepared?