The various branches of this casual and affordably priced Thai café offer a warm welcome and a good mixture of the Thai top ten, plus some specialities you'd be hard-pressed to find elsewhere on the high street. Staples such as pad thai, som tam salad, stir-fries and green curries are carefully prepared and niftily spiced (for western palates, naturally), while more inventive options range from melt-in-the-mouth venison in a punchy pepper sauce to baked butternut squash filled with fragrant seafood mousse. The atmosphere is breezy and accommodating, with friendly staff, light modern furnishings and a boppy soundtrack helping to keep things upbeat. As for drinks, hot or iced teas and tropical juices have the edge over various boozy beverages. Rosa's also does a good line in lunchtime snacks, from satay wraps to hot-and-sour soup – ideal if you’re eating alone.