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,
Hamburger burger uses ground venison from deer. A "veggie burger", "black bean burger", "garden burger", or "tofu burger" uses a meat analogue, a meat substitute such as tofu, TVP, seitan (wheat gluten), quorn, beans, grains or an assortment of vegetables, ground up and mashed into patties. A steak burger is marketing term for a hamburger claimed to be of superior quality. or, in Australia, a sandwich containing a steak. Steak burgers are first mentioned in the 1920s. Like other hamburgers, they may be prepared with various accompaniments and toppings. Use of the term "steakburger" dates to the 1920s in the United