Kiwiburger is a hamburger consisting of a toasted bun that is sandwiched with a four-ounce (113 g) beef patty, fried egg, beetroot, grilled onions, and additional ingredients such as tomato, lettuce, cheese, mustard, and ketchup. The burger was an invention of Bryan Old who came up with it as a nostalgic take on the typical New Zealand hamburger of yesteryear, prior to the introduction of McDonald's to the New Zealand market in 1976.