¥1,390 Seasonal Menu: Cocos’ Porcini Mushroom Foil-Baked Burger in Japan

Japanese Food
¥1,390 Seasonal Menu: Cocos’ Porcini Mushroom Foil-Baked Burger in Japan Japanese Food

Cocos restaurants across Japan will begin serving the seasonal Mushroom Gourmet menu on October 1, 2026. The autumn lineup features a porcini-scented mushroom foil-baked hamburger steak and a mushroom taco salad.

The menu is expected to remain available until mid-November at 504 Cocos locations as of September 25. Airport restaurants are excluded, and the hamburger steak is also available as a takeout bento.

The foil-baked hamburger steak costs ¥1,390 with rice or stone-oven bread, or ¥1,290 as a standalone dish. The takeout bento is ¥1,390, with online orders priced at ¥1,251, while the Autumn Mushroom Taco Salad costs ¥540.

About the Seasonal Mushroom Menu

Autumn Mushroom Octopus Salad — ¥540 (tax included ¥594). A seasonal twist on Coco's popular California Octopus Salad, featuring maitake and shimeji mushrooms. Enjoy the rich mushroom aroma combined with fresh vegetables and the crisp shell, which can be broken apart and topped with salsa sauce for a delightful experience.
Autumn Mushroom Octopus Salad — ¥540 (tax included ¥594). A seasonal twist on Coco’s popular California Octopus Salad, featuring maitake and shimeji mushrooms. Enjoy the rich mushroom aroma combined with fresh vegetables and the crisp shell, which can be broken apart and topped with salsa sauce for a delightful experience.

Porcini Mushroom Foil-Baked Hamburger Steak Bento

The Cocos takeout bento is ¥1,390 (¥1,501 tax included). Online orders are discounted to ¥1,251 (¥1,351 tax included) through the Cocos official website.

The hamburger steak combines porcini cream sauce, Steppen cheese, Cocos’ house-smoked bacon, and fried maitake, shimeji, and enoki mushrooms. The sauce can be enjoyed with the potato gnocchi, baked potato, or the included stone-oven bread.

¥1,390 Seasonal Menu: Cocos’ Porcini Mushroom Foil-Baked Burger in Japan

Highlights

  • Porcini-scented mushroom foil-baked hamburger steak with rice or stone-oven bread: ¥1,390 (¥1,529 tax included)
  • Standalone foil-baked hamburger steak: ¥1,290 (¥1,419 tax included)
  • Takeout bento: ¥1,390 (¥1,501 tax included); online orders: ¥1,251 (¥1,351 tax included)
  • Autumn Mushroom Taco Salad with maitake and shimeji mushrooms: ¥540 (¥594 tax included)
  • Available at 504 Cocos restaurants, excluding airport locations

Menu and Availability Details

ItemDetails
NameCocos Seasonal Mushroom Gourmet Menu
Menu / itemsPorcini-Scented Mushroom Foil-Baked Hamburger Steak; Porcini-Scented Mushroom Foil-Baked Hamburger Steak Bento; Autumn Mushroom Taco Salad
PeriodOctober 1, 2026 – mid-November 2026; airport restaurants excluded
Release dateOctober 1, 2026
LocationCocos restaurants across Japan; 504 locations planned as of September 25, 2026
StoresCocos restaurants nationwide, excluding airport locations
PriceFoil-baked hamburger steak with rice or stone-oven bread: ¥1,390 (¥1,529 tax included); standalone: ¥1,290 (¥1,419 tax included); bento: ¥1,390 (¥1,501 tax included); online bento order: ¥1,251 (¥1,351 tax included); Autumn Mushroom Taco Salad: ¥540 (¥594 tax included)
Official websiteCocos official website; Cocos takeout ordering

Before you buy

When can I buy the Cocos mushroom menu?
The menu launches on October 1, 2026, and is scheduled to end in mid-November 2026.
How much is the porcini mushroom hamburger steak?
The dish is ¥1,390 with rice or stone-oven bread, including tax at ¥1,529. The standalone price is ¥1,290, including tax at ¥1,419.
Where can I get the mushroom bento?
The bento is available for takeout at participating Cocos restaurants. Online orders are ¥1,251, including tax at ¥1,351, with 10% off through the Cocos official website.
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