Haven't been to Seewoo for a while, but I can get it in Guildford and Leeds. Seewoo are the main distributor of Chinese food in the UK, so I'd be surprised if they didn't have it.
Packet of this stuff, packet of green beans, some garlic and some soy sauce and you're onto a winner.
“Begin at the beginning,” the King said gravely, “and go on till you come to the end. Then stop.”