1. Familiar out, unique in
Preference is decreasing for some familiar burger components, including beef patties, onions, cheddar and Swiss cheeses, ketchup, mustard, and sesame seed and kaiser rolls. Consumers may be looking for less-traditional elements: Trending up are nonbeef burger patties—including turkey, stuffed burgers, pork and veggie—as well as atypical toppings like fried eggs and avocado spread or guacamole.