This is sort of difficult to answer, I can say it could be. It originates in the UK, Ireland, Scotland area, since the 18th century - I grew up eating corned beef hash and have actually had it a bunch of ways. I enjoy eating it with canned corned beef and mashed potatoes (I know, I know, but it tastes so good!). I think that maybe this version is more Americanized (Irish Immigrants no doubt). It has good roots in Ireland though, I think.