If you want to eat a vegan or vegetarian burger in Tokyo, Island Veggie in Shibuya is a good place to go to! It's more expensive than Freshness Burger, but therefore you have much more options, the quality is better and the size a bit larger. The burger cost between 900¥ and 1200¥. I chose the the one with avocado and my friend the falafel one. The homemade lemonade was also very refreshing :) !
〒150-0012 Tokyo, Shibuya, Hiroo, 5 Chome−3−9