I really liked Govinda's vegetarian restaurant at 10 Soho Street in London. It had a great atmosphere and a wide variety of different items displayed in its buffet. Although it doesn't only sell Indian food, it's main daily meals are classic Indian preparations such as curries, different kinds of rice, dals (lentil soup), pakoras and pappadams. You can order specific items or choose one of their popular thallis, which come in a few sizes for people with all kinds of appetites. I really recommend this place...the food was great and it was very affordable. Great central location too.