UK soups are closer to flavoured water from Evian than actual food.
Cullen Skink, Cock-a-leekie. Not flavoured water at all. The tomato soup and the oxtail that people make in the UK is actually quite a bit richer and more complex than the equivalent here. I sometimes make watercress soup and people here really like it.
eels and liquor - got to be the worst food in the world!
That's somehow never appealed, like flaczki there's the yuk factor. I see fish and chips is becoming more popular here and although frozen battered fish is only available (as far as I know) in Marks & Sparks and Makro, even Biedronka now sell a (sort of) British-style breaded type.