For those who know a bit London, Piccadilly Circus is a very touristy area. Therefore we tend to avoid it especially for weekends. But one thing quite important though is the fact that you can find one of the best vegetarian restaurants: it is called Tibits, it was created first in Switzerland.
You have a big buffet with various dishes, cold and warm. They change very regularly. You pick up the items you want and you pay as you it weights.
The interesting thing is that each meal indicates of this contains eggs or dairy (for vegetarian meals), gluten or onions. You have plenty of choice for the vegan food.
And I have to say, it is very tasty and creative. Plus the place itself is great, located in a quiet street, you won’t even remember that you are in the heart of London!