Given the fact that it only has 40 seats and that it's currently the ultimate hot-spot for non-carnivores in the city centre, it will come as no surprise that reservations are absolutely essential at Librije Zusje. The same people who brought you the famous vegetarian restaurant with Michelin stars in Zwolle have exported the concept to the posh premises of the Waldorf Astoria Hotel. The interior is what you would expect from a hotel chain such as this, a delicate mix of corn yellow comfy seats and tables covered in fine white linens, which blend in perfectly with the turquoise blue walls. It also offers views of the biggest courtyard garden in the city and the special chef's vegetarian menu is a mix of seemingly unrecognisable substances that come together like a symphony in your mouth.