Pret A Manger

You're rushing between King's Cross and your next meeting, or you've just arrived in London and need immediate sustenance. This Pret, plonked right on Euston Road opposite the station, is your mate. It's got all the classics done properly: fresh croissants, decent espresso that doesn't taste like burnt regret, and sandwiches assembled in front of you rather than sitting under heat lamps. The queues can be mental during peak hours, but the staff move quickly and know what they're doing. It's not fancy, but that's exactly why it works—no pretence, just good coffee culture delivered at pace.