Cardiff is quickly becoming a bastion of food and drink. We are being spoilt for choice with a new joint regularly oozing into the scene – whether you fancy a bib and seafood at Lobster and Burger, a sweet snack at Pancake House or a juicy burger at American favourite Five Guys – it seems we have it all. But we didn’t know what we were missing until a Slug and Lettuce popped up on the corner of Friary Centre…