Hello,
This year I tried growing Achocha (not sure about spelling!), Fat Baby variety, and I found it a fun veg to grow. It makes a fine climbing vine (a bit invasive!) that produces small green fruit with flexible "prickles". I prefer them cooked and add them to stir fries as they taste similar to a green pepper.
Each fruit has LOADS of seeds. So if anyone would like some, please PM me. They are started at the same time as courgettes and need a little protection when small but they are very easy to grow.