A blog post by Clive Schlee, the CEO of Pret A Manger:
More: The great vegetarian debate | Pret A Manger (29. July 2015)
There are buttons to vote at the bottom of the blog post:
1) Open a vegetarian Pret A Manger
2) Devote a fridge to vegetarian food in every shop
3) Pret is fine as it is...