I’m a burger addict. I admit it. When I first heard about Beastie Burgers, I couldn’t help myself; I caved to the crave and conned some hungry friends into joining me at the South Bank restaurant. The menu looked amazing, boasting flame-grilled burgers with tasty toppings like avocado, greens, Kenilworth cheddar, onion jam, beetroot, fried(…)