Where we live in Texas folks are more interested in cow heads, because that is what Barbacoa is made from. When I lived in Florida it was pig heads, because people there liked to make their own headcheese.
This is a recipe from Britain.
Apparently, sheep head is popular in Iceland, too. Here is a recipe for singed sheep heads and sheep’s head jam.
Then there is also this , which is exceedingly simple and requires little to no preparation.
Basically, any culture where folks don’t want to waste protein will eat every part of an animal, including heads, feet, tails and genitalia. Our problem these days in some countries is that we are too well off. If you have plenty of food you can afford to get picky.