Mutton is hardly ever eaten this side of the pond either. I've been veggie for over 20 years but never ate it before that. Hogget is growing in popularity but most sheep eaten here is still lamb.

The impression I get is that US agriculture is still pretty dominated in some areas by 2 big monocultures, beef and wheat - the UK has a bit more variability meat-wise but wheat is still the dominant grain here too. There are some national specialisations in meats throughout Europe - some countries occasionally eat horse, which is something the UK tends to draw the line at.

It's quite interesting when travelling to see both national cuisines and the local take on extra-national cuisines too. I was never able to get an Indian curry even approximating what I would call hot whilst in Germany, for example. And Mexican food I've had in NYC was very different from what passes as Mexican here - I had to look up what huitlacoche was for a start!