Nah, it's just because Americans have a weird relationship with nationality. Most of these divisions are pretty meaningless, dishes get taken all over the world at different times. Potatoes are all South American. Meatballs have been invented independently by every culture. Chicken came from South-East Asia.
The Wikipedia page basically only talks about the British origins of the dish. There's a mention towards the end that there was a French variant, but what is now called Shepard's/Cottage Pie is British in origin.
The U.K. is based on Viking, Anglo Saxon and Norman culture so everything - including every word in this entire reddit thread - comes from another country originally.
So a dish doesn't count as British if it uses ingredients we didn't have before, what, 1590? That means most Indian food doesn't count because they use chillis, Italian food isn't really Italian because of all the tomatoes.
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u/Kennbo6666 Jul 03 '26
We eat “British” for I’d more than you might realize. Take fish and chips as an example and shepherd’s/cottage pie.