FoodSaiwai Ward・YakoIzakaya¥3,000+

Sashimi and eight ¥390 small plates at Osashimiya Uozen in Komukai-Nishimachi, a fish izakaya where the chef greets you with a hearty "Irasshai!"

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Translated from Japanese. If anything differs, the Japanese version is correct.

Key points 30-second read

  1. A small izakaya in Komukai-Nishimachi, Saiwai Ward, known for its sashimi. It sits in a residential area about 20 minutes' walk from Kashimada and Yako stations.
  2. We had eight dishes, including a three-kind sashimi platter (bonito, bluefin tuna and wild yellowtail), fried octopus and seared mentaiko. Every dish is ¥390.
  3. Open Tue–Sat 5:00–11:00 p.m. and Sun/holidays 4:00–10:00 p.m.; closed Mondays (from restaurant listing sites — calling ahead is safest).
Restaurant infoおさしみや魚善 公式Instagramおさしみや魚善

Image: Roots Lab. Gourmet Club

Why we picked it: According to Gurunavi, it reopened after a renovation in October 2017. It is a local fish izakaya listed on Tabelog, Hitosara and Gurunavi, and on the night we went the tables were nearly full.

A fresh sashimi spot near Yako

"There's a place near home where you can get really fresh sashimi." Hearing that, we took a walk to Osashimiya Uozen in Komukai-Nishimachi, Saiwai Ward. It's about 20 minutes on foot from Kashimada or Yako Station, and in the middle of a quiet residential street you'll spot the glowing orange "Osashimiya" sign.

The glowing orange

Look for the sign glowing on a quiet street

Slide the door open and the chef greets you with a hearty "Irasshai!" and a big smile — instantly relaxing. The room was bright and clean and busy with regulars. The tables were nearly all taken, with only the counter free. You can tell right away that locals have loved this place for a long time.

The complimentary starter was a vinegared seaweed salad, and to our pleasant surprise there was no charge for it.

Eight dishes, each ¥390

Every dish ¥390 (before tax) Sashimi platter Fried octopus Corn fritters Iburigakko Seared mentaiko Tofu salad Fried gyoza Rice balls

We ordered eight dishes. The surprise is the price: every single one is ¥390 (before tax).

We started with the house specialty. That day's three-kind sashimi platter was bonito, bluefin tuna and wild yellowtail. The bonito had a nice bite, the tuna melted with flavor, and the yellowtail had just the right amount of fat — each fish clearly its own.

Yellowtail, bluefin tuna and bonito with shiso leaves on a long white plate

Bonito, bluefin tuna and wild yellowtail

The fried octopus was crisp outside and tender inside, getting sweeter with every bite — dangerous with beer or cold sake.

Large pieces of fried octopus with lettuce

Fried octopus

The corn fritters were crunchy with a gentle sweetness from the corn and a light touch of salt that goes well with drinks.

Four corn fritters on a long plate

Corn fritters

Iburigakko with cream cheese pairs smoky pickled daikon with mellow cheese. Before you know it, you're reaching for another.

Slices of smoked pickled daikon topped with cream cheese

Iburigakko with cream cheese

The seared mentaiko (spicy cod roe) is toasted on the surface, which brings out a deeper, richer flavor.

Sliced seared mentaiko on a black plate

Seared mentaiko

The tofu and chirimen salad sets mild tofu against salty baby sardines on plenty of fresh vegetables — light and refreshing.

Salad with tofu and baby sardines on colorful vegetables

Tofu and chirimen salad

The fried gyoza with scallions and chili oil comes topped with heaps of green onion and chili oil — a perfect drinking snack.

Fried dumplings topped with chopped scallions and chili oil

Fried gyoza with scallions and chili oil

We finished with nozawana rice balls. The salty pickled greens and sweet rice made every bite comforting.

Two rice balls mixed with nozawana pickled greens

Nozawana rice balls to finish

Fresh fish, low prices, easy to drop in

Three things stood out to us:

  • Fresh fish: in the sashimi, you could clearly taste the difference between each fish.
  • The chef: his friendly, cheerful manner fills the room with warmth.
  • Fair prices: you can order several good fish dishes without worrying.

There are seasonal specials too, and the number of regulars says a lot about how much the neighborhood trusts this place.

Hours and directions

According to Tabelog and Hitosara (checked October 15, 2026), it is open Tuesday to Saturday 5:00–11:00 p.m. and Sundays and holidays 4:00–10:00 p.m. It is closed on Mondays. Hours and prices can change, so if in doubt, check by phone or on the shop's Instagram.

  • Address: 3-1 Komukai-Nishimachi, Saiwai Ward
  • Instagram: @osashimiya.uozen
  • Phone: 044-767-7838 (Japanese; reservations accepted)
  • Train: about 19 minutes' walk from Kashimada Station (JR Nambu Line); you can also walk from Yako Station
  • Bus: from Kawasaki or Musashi-Kosugi Station, get off at "Toshiba-mae"
  • Seats: 27 (23 at tables, 4 at the counter). Private hire for up to 20 people (per Tabelog)
  • Smoking: Tabelog lists it as allowing smoking. Call ahead if this matters to you
  • No parking

See it on Instagram

A post we shared on the Roots Lab. Bimi-bu Instagram. You can view it right here.

Restaurant info

NameOsashimiya Uozen
Address神奈川県川崎市幸区小向西町3-1
Nearest stationAbout 19 minutes' walk from Kashimada Station (JR Nambu Line). By bus from Kawasaki or Musashi-Kosugi Station, get off at "Toshiba-mae"
HoursTue–Sat 5:00–11:00 p.m.; Sun and holidays 4:00–10:00 p.m.
ClosedMondays
Budget¥3,000+
Officialinstagram.com
Open in Google Maps

Please check the restaurant’s official information for the latest details (as of Oct 15, 2026).

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Runs Roots Lab. / UX writer

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