It is expected to open more than 400 locations this year and had signed development agreements covering 3,100 prospective sites by the end of last year. No UK locations or opening dates have been confirmed, according to What’s The Jam?, with the news first reported by hospitality trade publication Propel. Mason’s Famous Lobster Rolls will open its first UK restaurant at London’s Spitalfields Market. The US-based chain serves Maine-style lobster rolls and is considering opening between five and ten additional locations in the UK within the next 15 to 18 months. Would you like to see 7 Brew open UK drive-thru locations?