Mos Burger is now offering what it calls Tobikiri or Superb Burgers, for which it explains that "simple is best". As such, these burgers use large patties of 100 percent Japanese beef and a soy sauce and onion based topping. The cheese version also includes an original cheese topping made from Hokkaido Gouda cheese. Looks nice and isn't quite as expensive as some of the premium offerings from other fast food outlets. とびきりバーガー モスバーガー
http://mos.jp/cp/tobikiri/
Photo is a web capture for explanatory purposes, copyright belongs to the company.