Mediterranean Food shop / Restaurant in Tokyo
I love Tharros, a Sardinian restaurant in Shibuya - your vegan friends will do fine with some of the tapas plates and vegetable dishes.
My company has a lot of vegetarian staff, which makes organising a work function a bit of a nightmare. The most successful night out we have had was at David's Deli in Shirokanedai/Mita - everyone's dietary needs were catered for (omnivore, pescetarian, vegan, kosher), and the food was pretty good, too. Was kinda ironic going to an Israeli restaurant for a Christmas party though.
re: Robb S
That's tough...to find. This place Ryu(=lieu) is a Cost Performance one!! A garden inside the Hotel Niwa in Suidobashi, the chef Horiuchi has suceeded in the concept 'Olive Oil+French Mediterranean' to combine fresh products, herbs plancha grilled main...of a menu for diner at 4800-yens (starter, main, desert) and a lunch from 1800.-yens to 2200.-yens (salad vegetable buffet, main, coffee)
The best table, if you can book in advance, will be a table near the garden...