[Woofie]

I live in the UK too-- I used to love Quorn but recently discovered it isn't vegan

And there's also Cauldron Foods-- not sure if it is vegan or not, because I haven't had them in a while, but they make really good stuff. I think a lot of supermarkets have "free from" frozen sections, and usually the vegan choices are there, hidden among the vegetarian foods.
I've found some "meatless meat" at Whole Foods, and at health stores... Sorry I can't tell you with certainty what's exactly vegan, because I've been just a vegetarian until about a week ago.

Good luck!