Lunch meat is a type of prepared food that is usually served cold and is often used in sandwiches. The most common types of lunch meat are HAM, liverwurst, Spam, veal loaf, and luncheon meat. HAM is a cured and smoked pork product that is usually sliced thin. Liverwurst is a sausage made from liver, onions, and spices. Spam is a canned precooked meat product made from pork shoulder and HAM. Veal loaf is a type of meatloaf made with ground veal. Luncheon meat is a type of processed meat product that is usually made from pork, beef, or poultry.