Tortilla Euston

You're standing in the outdoor piazza at Euston Station, and instead of settling for another depressing chain sandwich, you spot Tortilla slingin' out fresh Mexican. It's the kind of spot that makes commuting through King's Cross feel slightly less grim. The vibe is properly casual – grab your burrito or tacos, find a spot on the piazza benches if the weather's decent, and actually enjoy what you're eating rather than just fuelling up. Service is quick without feeling rushed, and they take their ingredients seriously, which matters when you're building something meant to taste this good. It's elevated fast food that doesn't pretend to be anything fancier than it is.