Trumpet mushrooms have a thick stem and a small, flat brown cap.

They’re gaining traction on menus but are still considered unique. They can be found at independent casual-dining and progressive fast-casual restaurants.

Oyster mushrooms and trumpet mushrooms cooked with cream and thyme, served with spinach sauce (pictured).

Also, kale pappardelle at Olympia Provisions, based in Portland, Ore., is tossed with smoked king trumpet mushrooms, black truffle-and-celeriac cream and popped wild rice.