tacos made of cow eyes (ojo), cheek (cachete), brains (sesos) or head (cabeza). i don't know which parts of the head they use. all of them are good, especially the eyes.
I'll try pretty much anything edible, but I've shied away from eating eyes and brain. Mainly I'm concerned about prion diseases (BSE, etc.).
Quote:a few have mentioned beef tongue, but i would not consider that strange or unusual. it's very common and i believe every jewish deli serves beef tongue.
Beef tongue done like a pot roast is one of my favorite dishes.