Pollen Street Social, Mayfair, W1
This used to be a chain bar, but is now a rather nice restaurant with a bar/casual dining area and restaurant. (Photo of set lunch menu, Dec 2011, with links to food photos.) (Photo of it as Pitcher and Piano.)
Address: 8-10 Pollen Street.
Owner: (website); Marston's [Pitcher and Piano] (former).
London Pubology (The Pitcher and Piano)
The Daily Telegraph [Matthew Norman]
The Evening Standard [Fay Maschler]
The Guardian [John Lanchester]
The Independent [John Walsh]
The Independent on Sunday [Lisa Markwell]
The Sunday Telegraph [Zoe Williams]
A Rather Unusual Chinaman [EuWen Teh]
London Eater [Kang Leong]
Tamarind and Thyme [Su-Lin]