Don’t sleep on The Herne Tavern in Herne Hill. Their roast is straightforward, but the beef is so tender you could cut it with a fork. And The Catford Bridge Tavern does a roast that’s cheap but not cheap—big portions, real flavor.
Also, The East Dulwich Tavern has a Sunday roast that feels like a warm hug from a friend. The gravy there is so good, you’ll ask for a second jug—and they’ll smile and bring it. That’s South London hospitality.