Chicken Roll is basically chicken breast but it comes in the same shape as bologna; in other words, a log (or "roll") at the deli, resulting in cirular pieces when sliced. Althought chicken breast is easy enough to find at most all delis I haven't been able to find it available in this form.
Chorizo is a mixture of chopped pork meat, pork fat, salt, whole pepper grains, cinnamon, achiote, and other spices, which produce its characteristic deep red color. A traditional dish consists of fried egg, mashed potatoes, avocado, salad, and slices of fried chorizo.
Mortadella (Italian pronunciation: [mortaˈdɛlla]) is a large Italian sausage or luncheon meat (salume) made of finely hashed or ground, heat-cured pork, which incorporates at least 15% small cubes of pork fat (principally the hard fat from the neck of the pig). Mortadella is a product of Bologna, Italy.
A smoked, seasoned sausage usually made up of pork and chicken, bologna is the black sheep of deli meats thanks to being so over processed and concentrated in sodium. (Those nutritionals you're seeing above are usually for a single slice, compared to the nutritionals of deli meats which are 4-5 slices per serving.) To avoid the modified corn starches and potassium acetates, grab a package of Saag's over Bar-S—and you'll also save yourself the calories, fat, and sodium.
Salami is a raw-fermented sausage consisting of raw comminuted pork and/or beef meat, fat, and additives, such as curing salt, spices, sugar, and a starter culture. There are multiple different types of salami meat in various markets around the world.