Wow! that's a bit of a record breaking success through Marks and Spenser. I like a bit of a veggie burger myself so must aim to pop over to M&S and get some of that local produce. Well done both M&S and Tilmanstone Salads.
I have been known to occasionally enjoy the Quorn burger in Millers ( Premier Inn )..which isn't bad at all. not everywhere stocks this kind of thing.
Don't think it would have enough gristle for our Brian though..
