Aburi Yakiniku Osa: Yakiniku Famous for Thick-Cut Tongue

Aburi Yakiniku Osa (炙り焼肉 おさ) is a house-style restaurant in the village of Oshino, near the Fuji Five Lakes, that has built its reputation on one standout dish: an enormous, thick-cut plate of gyūtan (beef tongue). The meat is scored to ensure it cooks through on the grill while remaining exceptionally tender, and served with sliced raw onion. For most visitors, this single, generously portioned plate is the main event.

Beyond the signature tongue, reviewers consistently praise the salt-seasoned harami (skirt steak), as well as the rosu (loin) and kalbi (ribs). Side dishes like kimchi and the spicy yukkejang soup are also popular. Guests frequently note the unusually large portion sizes, the quick arrival of dishes, and the warm, family-run service. Many non-Japanese visitors report being helped in a friendly manner despite the staff's limited English.

Some reviewers found the prices high, and a few mentioned poor service or being turned away without a reservation. There were also sporadic reports of some horumon (offal) dishes having an off-smell. Visitors should also be aware that menu prices are often displayed without tax, which can be a surprise at the end of the meal.

Dinner typically costs between ¥10,000 and ¥14,999 per person. Reviewers in 2024–2026 reported paying around ¥5,800–¥6,300 for the signature thick-cut gyūtan, ¥4,200 for the salt-seasoned harami, and ¥2,500 for rosu. While not a budget meal, most agree the quality and very large portions offer good value, especially when sharing plates.

• Booking: Reservations are strongly recommended. Many reviewers state the restaurant operates on a reservation-only basis and turns away walk-ins.
• Payment: Cash only. Credit cards, electronic money, and QR code payments are not accepted. Note that menu prices may not include tax, so bring sufficient cash.
• Seating: The restaurant has shoes-off, house-style seating at five tables that can accommodate 4 to 6 people each. There are no private rooms.
• Getting there: The restaurant is about a 5-minute drive from the Yamanakako IC on the Higashi Fuji Five Lakes Road. By public transport, it is a 5-minute walk from the "FANUC" bus stop.
• Parking: Available in front of the restaurant.
• Language: Staff have limited English, but are reported to be helpful to foreign visitors.