Whilst its not completely central I would like to suggest the original Ladies drinks pub of the Captain Kidd near Tower Bridge. It's big, usually quietish of a weekday evening, does good pub grub (including cheesy chips), is a Sam Smiths pub (so cheap) and has awesome river views, outside seating and room for a bike pile in the pub garden.
Whilst its not completely central I would like to suggest the original Ladies drinks pub of the Captain Kidd near Tower Bridge. It's big, usually quietish of a weekday evening, does good pub grub (including cheesy chips), is a Sam Smiths pub (so cheap) and has awesome river views, outside seating and room for a bike pile in the pub garden.