She calls it “opa” (sp?), but I can’t find a darn thing about it online. I’ll ask her for more info...
It’s “fruit” is a big light green vegetable. The closest pic I could find online is a “Zephyr Squash”, but I’m thinking these my wife gets are more of an even light green all around, not light green on the bottom and yellow on top.
Does this look close?
https://www.wisegeek.com/what-is-opo-squash.htm
https://www.specialtyproduce.com/produce/Opo_Squash_396.php
If so, you’ll have better luck finding it under the name cucuzza.