I suspect one of these unusual vegetables might be celeriac, or celery root. This hairy, knobbly root isn't much to look at, but it's delicious and quite versatile. We love it in stews ...
This is the celeriac hummus we created for the Te Mana Mutton sandwiches we served at Taste Auckland as part of Hangi Pit Masters in 2018. It makes a great accompaniment to any roast or braised lamb.