[Quiet Man Cometh]

There's an observation in social geography that immigrant populations can often have or put more effort into some things than they would back in their country of origin because a conscious effort is made to hang onto it. For example, Cape Breton Fiddle is a style of fiddle playing that has gone extinct back in Scotland and now exists in Cape Breton because of the efforts made my Scottish immigrants to keep it going. There might be more effort put into traditional food by an immigrant because of sentiment, or perhaps because it's not as easy to get the ingredients and one wants it to be worth the effort.

Foods and such can change from little things like local supply. For instance, colcannon is an Irish dish with potatoes and cabbage. It is also listed as being made with bacon, but that didn't happen until it arrived in North America because of the easy access to pig meat here. When I had it in Ireland, no bacon.