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
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.

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
| Item | Details |
|---|---|
| Name | Cocos Seasonal Mushroom Gourmet Menu |
| Menu / items | Porcini-Scented Mushroom Foil-Baked Hamburger Steak; Porcini-Scented Mushroom Foil-Baked Hamburger Steak Bento; Autumn Mushroom Taco Salad |
| Period | October 1, 2026 – mid-November 2026; airport restaurants excluded |
| Release date | October 1, 2026 |
| Location | Cocos restaurants across Japan; 504 locations planned as of September 25, 2026 |
| Stores | Cocos restaurants nationwide, excluding airport locations |
| Price | Foil-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 website | Cocos 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.