New Golden Cheese Sauce Focaccia Debuts at Mos Burger in Japan

Mos Burger is introducing the “Golden Cheese Sauce Focaccia” in Japan for the first time at its locations nationwide. This new addition to their seasonal lineup brings a unique twist to the popular “Tsukimi” series.

The lineup is highlighted by the rich and flavorful golden cheese sauce, which combines Parmesan and cheddar cheeses with a hint of black pepper. This is a great detail to keep in mind when comparing similar Japanese food spots nearby.

The “Golden Cheese Sauce Focaccia” is priced at ¥630 (tax included), and the “Golden Cheese Sauce Focaccia” without the egg is available for ¥560 (tax included). These items will be available from September 9, 2026, to early November at most Mos Burger locations across Japan.

About the New Menu

The new “Golden Cheese Sauce Focaccia” features a juicy horseshoe-shaped sausage, half-boiled egg, shredded cabbage, and minced onion, all sandwiched in a soft focaccia. The golden cheese sauce, enriched with egg yolk powder, adds a creamy depth, while black pepper sharpens the flavor. The focaccia’s texture is light and fluffy, thanks to the addition of salted malt, making it a delightful seasonal treat.

Highlights

• Mos Burger introduces “Golden Cheese Sauce Focaccia” in Japan.
• Features a rich cheese sauce with Parmesan, cheddar, and black pepper.
• Available from September 9, 2026, to early November.
• Two options: with egg at ¥630 and without egg at ¥560 (tax included).

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