Vöner stands for 'vegan doner kebab' and is a spit-roasted blend of wheat protein, vegetables and herbs. It was dreamed up more than a 20 years ago by Holger Frerichs, a one-time resident of a so-called Wagenburg, a countercultural commune made up of old vans, buses and caravans. The alt-spirit lives on in his original Vöner outlet.
You'll also see branches in other German cities.