Hamburger Cheese (usually processed cheese slices but often Cheddar, Swiss, pepper jack, or blue), either melted directly on the meat patty or crumbled on top, is generally an option. Condiments might be added to a hamburger or may be offered separately on the side including mustard, mayonnaise, ketchup, salad dressings and barbecue sauce. Other toppings can include bacon, avocado or guacamole, sliced sautéed mushrooms, cheese sauce, chili (usually without beans), fried egg, scrambled egg, feta cheese, blue cheese, salsa, pineapple, jalapeños and other kinds of chili peppers, anchovies, slices of ham or bologna, pastrami or teriyaki-seasoned beef, tartar sauce, french fries,
Psychology of eating meat however, meat in many other cultures is sold with these body parts. Some authors have suggested that the use of non-animal words such as "sirloin" and "hamburger" for meat can reduce the salience of meat's origins in animals, and in turn reduce perceived consumption of animals. Similarly, farmers and hunters use terms such as "processing" and "managing" rather than "killing", a choice which can be interpreted as a way to provide psychological distance and facilitate animal use. The importance of dissociation processes was supported by a 2016 Norwegian study which, in a series of experiments, directly tested the effects of