We talked with a Swiss girl that was on her way back from a year in the US, and she suggested it as "Swiss" food, and sure enough, you could order a plate of it. Can't remember what it came with, though, such as mustard, horseradish, etc.
Huh.
Have you ever had this? I grew up on it, and LOVE it:
https://www.cooksinfo.com/shit-on-a-shingle-recipe