Boojum - Hanover Quay

You're standing in the gleaming Docklands, surrounded by glass towers and tech offices, when that familiar Boojum craving hits. This outpost of the Belfast-born chain has carved out its spot among the Grand Canal crowd, and fair play to them - they've mastered the art of the absolutely massive burrito that actually holds together. The drill here is simple: join the queue, watch the lads behind the counter work their magic with tortillas the size of dinner plates, and prepare for a portion that'll have you rolling back to your desk. The chicken tinga is sound, the guac costs extra (obviously), but when you're facing down a burrito that weighs more than a small child, you're getting proper value for your tenner.