There are at least 5 veg/vegan items on the menu, and their soup of the day is listed as always veg*n. Interesting food options, not just mushroom risotto. The chef understands how tastes work, and uses that to create. I had something called Hippie Loaf, and while the name was a little condescending, it tasted great. Hubby had wild mushroom crepes and raved.
If you are vegan, make sure the 'accompaniments' are also vegan, as I doubt the mashed potatoes are, for example. (The meat eaters enjoyed their food too - don't get ticked off about that statement: I know that it can be nearly impossible to make both omni and vegi happy in one place, especially in a veg black hole like this area.)
I didn't notice any vegan desserts, but I would think that a phone call before to request one would be welcomed, as would an on-the-spot request - I have a feeling the chef could make it happen!
The Studio was lovely, with great service, quite a formal atmosphere, but with a laid back vibe. (We arrived in shorts and were welcomed the same as the lady in a long black dress.) It is very expensive, but if you want a special occasion meal, this is it.