Tree by Naked

Vegetarian and vegan eats run by the digital art group

Naked Inc. is best known for some really cool digital art events, but they also operate the Tree by Naked cafe at Yoyogi Park. I would highly recommend this place if you are vegetarian/vegan or have friends or family visiting who are, because there are various plant based dishes to choose from. The downside is that it's VERY expensive IMO (1980 yen for a smoothie bowl, for instance!) so while your international friends earning international wages might not worry about the prices, it feels like a lot on a Japanese wage. Still, I would say it's a nice place to check out, conveniently located (easy to tack on to a Harajuku/Omotesando sightseeing visit), and the food is good.