I have heard that people who eat prickly pear cactus fruit (tunas) like the green ones.
A local speciality market advertised Green Cactus Pears for sale.
I stopped by there to pick up some. I was surprised how many they had (huge pile) and how big they were.
The biggest one above weighed almost 8 oz. and was over 4" in length.
I checked online and I gather that most people make juice with them.
I cut one open to taste it.
I was a little disappointed. It tasted like a mild sweet cucumber.
The seed are big and hard. Some people eat the seeds, I spit them out.
I still would like to get a cuttings of an Opuntia that produced fruit like this.