Mentioned by Travel Bristol
The Best Vegetarian Restaurants In Bristol | Bristol's Best Veggie Choices
"Given how much happiness the humble hamburger can spark with just one bite, isn’t it a real shame that it was lacking in good vegetarian alternatives for a really long time?. As the restaurant industry eventually thawed – just like the only frozen veggie patty you could find in 2010 – it became more open to creating with plant-based ingredients in mind. Rory Perriment, however, was way ahead of the curve, starting Burger Theory up in 2012 and taking to the road with their mobile stall to serve delicious, more creative burgers to the masses at fairs and festivals."