London restaurant news: Jamie Oliver’s mentor is back to show London how to do Italian properly

Gennaro Contaldo is set to open his first restaurant in almost 20 years. Meanwhile, Dishoom expands its bacon naan empire, Australians take aim at sad desk sushi and John Lewis bets that 300 seats, martinis and a sundae can make department stores fun again. Hannah Twiggs rounds up the restaurant news worth knowing