At City Càphê, a Vietnamese cafe close to Cheapside, there’s always a big queue at lunch for a reason - the food’s very good. Mercifully, the line moves quickly, too. The pho and summer rolls are excellent, and they also have noodle salads that are much better than anything you’ll find at a chain. At a place this busy, you’re definitely going to want to get takeaway. Know that it’s cash-only for orders under £15.