Matsumoto's Tabelog-Bronze eel house — a five-seat beech counter, eel grilled without steaming, suppon in the evening, and a calendar you can actually reach.
By SHOKU NOREN TeamFacts last verified September 2026How we check
In shortEel and suppon (soft-shell turtle) — eel grilled unsteamed, with a serious wine list, near Matsumoto Castle. Reservations run in Japanese and are hard to place from abroad, so our Tokyo desk requests the table for you, by phone and in Japanese.
Price
Lunch unaju ¥5,800; dinner eel course ¥15,000, eel-and-suppon course ¥22,000, plus 10% service in the evening
Hours
Lunch 12:00–14:00; dinner 18:00–21:00 (last order 21:00)
Closed
Mondays and Tuesdays
Seats
Thirteen — a five-seat counter and tables for eight
Payment
Cards and QR payments accepted; 10% service charge at dinner
Getting there
About 15 minutes on foot from JR Matsumoto, in the Ote district near the castle; no parking
Party size
7 or more by phone
Dress code
No dress code
Matsumoto is a castle town, a mountaineering town and a town of
folk craft, and Yamasei manages to be all three at once: a small
eel house in the Ote district a short walk from the castle, with a
beech counter and Matsumoto folk furniture, where the eel is kept in
well water and grilled without the Kanto steaming step so that, in
the house’s words, the flesh stays plump and the skin turns fragrant.
It moved to this address in early 2023 and has since collected the
Tabelog Award’s Bronze in 2025 and 2026 and a place among the
country’s hundred best eel houses in 2024 and 2026 — the best‑rated
eel in Nagano by that measure.
What you eat
At lunch, the classics: unaju (¥5,800), a shirayaki‑on‑rice set
(¥5,600), skewers of liver. In the evening the house becomes a
course restaurant with two menus — an eel course and an
eel‑and‑suppon course, reported at ¥15,000 and ¥22,000, with 10%
service — the second built around soft‑shell turtle grilled and in
soup, the pairing that gives the house its full name, Unagi Suppon
Yamasei. Wine is taken unusually seriously for an eel house, with
Burgundy the focus according to regular guests; there is sake too.
The booking reality
This is one of the easiest good books in the Japanese Alps. The
official site’s reservation button leads to Ikyu, the Japanese
platform, where dates open without a fixed release day; guests in
July 2026 reported booking about a week ahead. Dinner is
reservation‑only. Lunch takes walk‑ins when the counter has room —
one reviewer in August 2026 turned up without a booking and was
seated — but we would not count on it on a weekend. Parties of seven
or more must telephone (050‑3595‑8818, in Japanese), and the house
does not seat children.
Ikyu’s cancellation terms apply: 20% from seven days out, 50% from
two days, 100% from the day before and for no‑shows. Ikyu itself is
a Japanese‑language platform that expects a Japanese phone number,
which is where most overseas guests stall; our desk books it, or
calls the house in Japanese for a larger table, and confirms the
seating in your name.
Travelers spending a night in Matsumoto on the way to Kamikochi or
the Alps who want the town’s best‑rated dinner without a campaign —
and anyone who has only ever eaten eel steamed and wants to taste the
other school, with a glass of Burgundy beside it.
The house's cancellation charge
From 7 days before20%
From 2 days before50%
From 00:00 JST, 1 day before100%
Same day, with notice100%
Same day, no notice (no-show)100%
Charged by the house, not by us. A plan's own policy takes precedence.
Free release-date alerts: the day before, on the morning of release day (08:00 JST) and about 30 minutes before when the time is known — or a weekly summary if the house opens a little every day.
Yamasei: common questions
Can you book Yamasei from abroad?
Yes, through our Tokyo desk. Online via Ikyu or by phone; dinner reservation-only, lunch takes walk-ins when there is room. We call the restaurant for you, in Japanese, and the ¥6,000-per-seat fee is charged only if we confirm your table — no seat, no fee.
Some of these links are referral links: if you book through them we may earn a small commission, at no extra cost to you. Restaurants never pay us to be listed or ranked. Editorial policy
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Facts on this page were checked by our Tokyo desk. You are welcome to quote them with a link:
