Pare off its warty exterior and you'll uncover the royal vegetable within: a perfect, ivory-fleshed, winter alternative to potatoes and other starches.

NPR: The Vegetable World's Ugly Duckling: Celeriac

While guides from Seafood Watch and the Blue Ocean Institute both say monkfish populations are sufficient to continue harvesting at current rates, each group takes issue with the method used to catch the warty, brown bottom-feeder.

WSJ: Guidelines for Eating Sustainable Seafood