What in Sam Hell is ethnic food?

I was doing a little shopping today and there was an aisle in the market called ethnic food, I had to ponder, what is ethnic food? Isn’t all food ethnic to someone? If I were raised in the Middle East, would not lasagna be ethnic food to me? Or if I were Hispanic or in Mexico would not sauerkraut, bratwurst, etc be ethnic? Any food not indicative of that area, or point on the globe, would that not make the food ethnic? Someone’s regular is always someone else’s ethnic.