The Lighthouse in Battersea do VERY good ones, but you'll need to book. Great atmosphere too, with loads of board games and mismatched chairs.. The Bobbin in Clapham Old Town is good, but a bit soulless. The Windmill in C South do very tasty roasts, but £16 is a wee bit steep when you're surrounded by other peoples' ‘delightful’ children. Enjoy! I'd got to the Lighthouse http://www.thelighthousebattersea.com/