Vegetarian/Vegan restaurants in Istanbul

Here are a few options I found if you want to eat vegetarian/vegan in Istanbul. All of those places are in Beyoğlu on the european side of the city.

1. Parsifal Vejetaryen Restaurant & Cafe: Kurabiye Sokak No: 9/A 
2. lokanta helvetia: general yazgan sokak, no: 12 - very inexpensive - very good
3. Zencefil: Kurabiye Sokak 3

Parsifal and Zencefil are basically opposite each other near Taksim square. Helvetia is on the other end of Beyoğlu's main shopping street 'Istiklal Caddesi'.