I had the BEST Cumberland sausages in Ambleside (yeah, Cumbria, go figure!) They must've come from the local butcher, because they were infinitely better than the ones you get in the supermarket.
I guess I was lucky in that I'd had all of the foods mentioned so far in the US - with the exception of pease pudding which I've never had but which sounds lovely!
It's really nice. You can get it in the supermarkets here (as Balmerhon mentioned) as it's very popular up north (our local Co-Op has it) but you can't beat my FIL's homemade recipe that's been passed down. I need to learn from him! Sometimes he makes it with little bits of ham in it, which is nice, too. He says it's dead easy. I guess it just tastes better homemade. You let it set in the fridge until it becomes sort of a cold paste. He says you can heat it up and eat it like soup, but I've only ever had it cold on ham sandwiches and it's lovely. Only problem is that everytime he makes it, he brings us far more than we could ever eat!
The cheese... oh, the cheese! How did I live before Wensleydale! And I have a weird obsession with Dairylea slices. I know it's processed cheese, but I never dreamed processed cheese could be so delicious and creamy, unlike the yellow plastic-y slices they sell in the US.

Scones with clotted cream and jam are delicious (is that what you mean by a cream tea?)
And I personally love the steamed puddings - chocolate and sticky toffee puddings are delicious!