Brady’s 513 Old York Road, SW18 (020 8877 9599; bradysfish.co.uk)
Run by passionate supporters of Hugh Fearnley-Whittingstall’s Fish Fight campaign, this is the place to come for sustainable fish. It’s a bustling space with fishy murals and a seaside feel. Choose from traditional battered fish (from £7.50), or grilled lemon sole or brill (from £9.20), and dunk your chips in a fresh dill or tarragon sauce.