That Guardian link may have made my lunches immeasurably better! Thanks!

Charlotte Street is nearby has a few good restaurants: Pied a Terre (FYI it does a fabulous value lunch time deal for a Michelin Star restaurant). Roka for Japanese Yakitori/Robata, and Fino for Tapas, are both good. Finally Bam Bou (used to be high end French influenced Vietnamese, now seemingly pan-Asian) used to be pretty solid a few years back, but last time I went was a bit bland...might have been an off night.