菌曜日 Kinyoubi — Japanese Fungus Fridays
Bad Boy Diner™ · Est. 1985, Bay Area. An izakaya-style companion to our American-style Fungus Fridays menu — dashi-simmered mushrooms, yuzu-and-sweet-sake grilled skewers, mushroom tempura, and more. See the Fungus Fridays hub to compare both. Prices are shown in yen (¥) as printed on the original menu; use the toggle below to see the USD-equivalent. "This Week's Mushrooms" is a rotating, informational callout of what's in season — not a separately priced item.
Browse and order every 菌曜日 Kinyoubi item using the picker below.
Mains & Sides
- 季節のきのこ煮物 · Kinoko no Nimono / Simmered Seasonal Mushrooms (dashi, soy sauce) — ¥680$4.42
- 柚子蜜焼き · Yuzu Mitski Yaki (grilled mushrooms, yuzu, sweet sake, soy sauce) — ¥780$5.07
- きのこの天ぷら · Kinoko no Tenpura / Mushroom Tempura (seasonal mushrooms, tempura sauce or salt) — ¥780$5.07
- きのこご飯 · Kinoko Gohan / Mushroom Rice (seasonal mushrooms, rice, dashi) — ¥580$3.77
- きのこ汁 · Kinoko Jiru / Mushroom Miso Soup (mushrooms, miso, green onion) — ¥480$3.12
- なめこおろし · Nameko Oroshi / Nameko with Grated Daikon (nameko mushrooms, grated daikon, soy sauce) — ¥480$3.12
- きのこのバター炒め · Kinoko no Bataa Itame / Sauteed Mushrooms (seasonal mushrooms, butter, garlic) — ¥680$4.42
- きのこの南蛮漬け · Kinoko no Nanbanzuke / Marinated Mushrooms (mushrooms, vinegar, soy sauce, chili) — ¥580$3.77
- きのこグラタン · Kinoko Guratan / Mushroom Gratin (mushrooms, béchamel sauce, cheese) — ¥780$5.07
追加メニュー · Add-ons
- ご飯 · Rice — ¥200$1.30
- 味噌汁 · Miso Soup — ¥200$1.30
- 漬物 · Pickles — ¥200$1.30
- 大根おろし · Grated Daikon — ¥100$0.65
今週のきのこ · This Week's Mushrooms (rotating, informational — not a priced item)
Shiitake, Maitake, Shimeji, Enoki, Nameko, Hiratake — ask your server which are in season this week.
JPY→USD shown at 153.71 JPY per $1 (Federal Reserve H.10 Weekly, Foreign Exchange Rates, 2026-09-11 reading; cited 2026-09-18). See federalreserve.gov/releases/h10/current. Cart and checkout always total in USD regardless of which currency is displayed above.