I thought Sweet Breads was the general term for a animals Organs as used primairly in French Cusine?
Cow brains are served at many Taquerias under the name Cessos. Instead of Carne Asada or Pollo you just pick Cessos as your meat. Very Common!
Stazi! Nothing like Sicilian Pigs Feet slow roasted in a pot of simmering red pasta sauce and a nice loaf of sourdough.

Chinese Dim-Sum
Chicken feet in a Red sweet/hot sauce. Just ensure you spit out the little bones

Plain potato chips on top of Macaroni Salad or used as scoops.