"Can a burger give you nightmares? That’s what the Burger King brand set out to prove with an unusual research study on its latest Halloween burger, the Nightmare King. This spooky sandwich features ¼ lb of savory flame-grilled beef, a 100% white meat crispy chicken fillet, melted American cheese, thick cut bacon, creamy mayonnaise, and onions all assembled on a glazed green sesame seed bun."