Hey! Thanks for trying for me. I've been looking online and found "appalachian chow chow" This is gotta be close to how they used to make it. It's like a relish. People here eat it with soup beans, fried potatoes, and cornbread. Mmm mmmmm!I tried googling and initially got pictures of the dog breed Chow Chow.
I can't help you, but in the meantime I did find this;
Chow chow or as commonly known as chayote is an edible plant that belongs to the gourd family Cucurbitaceae along with melons, cucumbers and squash. The plant has large leaves that form a canopy over the fruit. The vine is grown on the ground or more commonly on trellises.www.tarladalal.com