Coco’s Japan is adding a ¥1,419 seasonal porcini mushroom foil-wrapped hamburger steak to its autumn menu from October 1, 2026. The dish is part of the chain’s Seasonal Gourmet: Mushrooms lineup.
The menu is being offered at Coco’s restaurants in Japan as an autumn dining option. The announcement does not specify an end date, so availability may depend on the restaurant and remaining menu period.
The main hamburger steak costs ¥1,419 (tax included), or ¥1,529 (tax included) with rice or stone-oven bread. The lineup also includes an Autumn Mushroom Taco Salad for ¥594 (tax included) and a takeout hamburger steak bento for ¥1,501 (tax included).
About the seasonal mushroom menu
The featured hamburger steak combines three types of mushrooms with the aroma of porcini, the savory flavor of the beef patty, and smoked bacon. It is served in a foil wrap with a rich sauce designed to be enjoyed with the accompanying potato gnocchi, baked potato, or stone-oven bread.
Highlights
- Porcini Mushroom Foil-Wrapped Hamburger Steak: ¥1,419 (tax included).
- The rice or stone-oven bread set costs ¥1,529 (tax included).
- Autumn Mushroom Taco Salad: ¥594 (tax included), with maitake and shimeji mushrooms.
- The hamburger steak bento for takeout costs ¥1,501 (tax included).
- Online orders through the official Coco’s website are available at 10% off.
Menu and availability details
| Item | Details |
|---|---|
| Name | Coco’s Seasonal Gourmet: Mushrooms |
| Menu / items | Porcini Mushroom Foil-Wrapped Hamburger Steak; rice or stone-oven bread set; Autumn Mushroom Taco Salad; porcini mushroom hamburger steak bento |
| Period | From October 1, 2026; end date not specified |
| Release date | October 1, 2026 |
| Location | Coco’s restaurants in Japan |
| Price | Porcini Mushroom Foil-Wrapped Hamburger Steak: ¥1,290 (¥1,419 tax included); rice or stone-oven bread set: ¥1,390 (¥1,529 tax included); Autumn Mushroom Taco Salad: ¥540 (¥594 tax included); hamburger steak bento: ¥1,390 (¥1,501 tax included) |
Before you buy
- When can I buy the Porcini Mushroom Foil-Wrapped Hamburger Steak?
- The seasonal menu begins on October 1, 2026. The announcement does not specify an end date.
- How much is the Porcini Mushroom Foil-Wrapped Hamburger Steak?
- The hamburger steak costs ¥1,419 (tax included). The rice or stone-oven bread set costs ¥1,529 (tax included).
- Where can I get the hamburger steak bento?
- The bento is available for takeout at Coco’s restaurants, and official online orders offer a 10% discount.
The foil-wrapped presentation helps retain the aroma of the porcini and the flavor of the mushroom sauce. The set version adds a choice of rice or stone-oven bread, while the sauce can also be paired with the potato sides included with the dish.
For a lighter seasonal option, the Autumn Mushroom Taco Salad adapts Coco’s California Taco Salad with maitake and shimeji mushrooms. Fresh vegetables and the crisp taco shell add contrasting textures to the mushrooms.
The bento version brings the featured hamburger steak into Coco’s takeout lineup at ¥1,501 (tax included). Customers ordering through the official Coco’s website can purchase it with a 10% discount, making online ordering another way to enjoy the autumn menu.
