I have visited a very cheap restaurant a couple of weeks ago on Beak Street, Soho. It is called Bistro1. I only found out that it is part of a chain afterwards. I was merely attracted by the price of their set lunch, 2 courses for 6.50 GBP and 3 courses for 7.50 GBP. I was pleasantly surprised by the quality of the food. I had Mussels for starter which was average but the main Beef Bourguignon was fabulous with tender beef immersed in a richly flavoured red wine sauce and accompanied with perfect mashed potatoes. I also had a Cassata for dessert which was good. They have a very extensive menu and I am looking forward to trying them out during my future visits.