LaCerb Norfolk and Suffolk oysters are the best in the world - and the cleanest. Try a Brancaster oyster. Have just come back from a holiday near one of the biggest oyster beds in France - lovely, but even a 1 didn't match the size and sweetness of a Brancaster. Cromer crab, whelks, clams, mussels -, lobsters, crayfish, Morecambe Bay shrimp..
Unfortunately we export the majority of the fish we catch to Europe - and alas, decimated our eel population along the way with the Spanish adoration for small eel (not the only reason).
Welsh or Kent salt lamb, Arbroath smokies, Scottish smoked salmon, cock a leekie, Athol Brose, porridge, pork pies, rhubarb fool, Eton mess, shepherd's pie, roast beef, Yorkshire pudding, Caerphilly, Wensleydale, Stilton ... and now our world beating white wines. Elderflower syrup (amazed not to find it easily in France) - Yorkshire rhubarb. Crumble. Clotted cream. Cornish pasty. Eel and mash, yes. Venison. I'm a vegetarian but I don't eat badly (and sadly miss most of the above).
Where are you eating, LaCerb?