Rice burger

A rice burger or riceburger is a variation on the traditional hamburger with compressed rice patties substituted for the hamburger buns. The MOS Burger fast-food restaurant chain introduced the rice burger in Japan 1987, and since then it has become a popular food item in East Asia. Beginning around 2005 McDonald's also offered a rice burger in some of its Asian stores, with mixed results.
In South Korea they are known as "bapburgers". Popular Korean-style rice burgers include fillings such as stir-fried kimchi and tuna with mayonnaise.