The Irvine location is just as good (if not maybe better??) than the Silverlake location! I made a reservation for a Friday night & we loved the entire meal! The service was on point, the cocktails were good (I got the lychee one)! I absolutely loved the salmon skin salad and the soft shell crab! The best I've ever had for both dishes! We also got the dragon roll with eel on top? The roll was sooo filling-- each piece could've been a two biter! My fav thing of the night is the toro! We got the toro nigiri and it was sooo good! I could've eaten 10 more!

Hands down some of the best sushi I've had recently, and great value for the price point. Excellent service throughout and the staff even brought me a hook for my bag. We ordered the Hachi Mori 12pcs and the toro roll, both of which were very flavorful even without added soy sauce or wasabi. The fattyness of the toro and salmon in the Hachi Mori were perfect. Bathrooms were clean and plenty of sinks too. Validated parking for up to 2.5 hours in the garage.

Omakase bowl with sesame oil was amazing! I went to twice in a week and same dish, so fresh!

永遠記得～沒有人可以左右你的人生，只是很多時候，我們需要更多勇氣，去堅定自己的選擇，美好的一天，就從下好自己的棋，演好自己的角色，努力的去實現你的理想和目標開始～ 很多的日本料理都是韓國人開的，大部分他們走的是特大號魚片，CP值高的路線，當然也包含了AYCE,這一家，IZakaya Osen 是屬於比較貴些，精緻路線，我已經寫過兩次，但是我覺得他們東西搭配在一起就是很好吃，就燒烤，我不喜歡，來這，燒烤可以直接跳過了，這我還喜歡他們中午很便宜的生魚片便當，跟他們比較有特色的bowl , 總之就是跟別人不太一樣，跟我一起去的兩個朋友，也很喜歡這家，在爾灣很受歡迎，生意也好是屬於比較新式的日料~

We had a fantastic time at this izakaya restaurant this time! We were able to grab a corner counter seating with last minute reservation. It was so relaxing and cozy for hubby and I. We shared bottle of cold sake and two draft beers. The food was so delicious as usual. I loved the flavorful skewers and the raw was so fresh. Hubby especially liked jack mackerel nigiri. I enjoyed my favorite ankimo as well. The service was so friendly and attentive the entire time. It was a great izakaya dining experience for us! Great food and service, we would definitely come back whenever we are in this area!

We came here for lunch on a week day, and we made a reservation through Yelp. The bar area is nice, but you can't really see too much of what the sushi chefs are making. The service was good overall. The fish is so fresh and delicious and can't wait to come back. The lunch deals are great, and we opted for the chirashi. - Chirashi (5/5): For $35, the portions here are pretty big and quite filling. The salmon was my favorite, super delicious and fatty. Comes with lots of pickles sides as well.

I am a bit picky person when it comes to sashimi/sushi - and I will tell you, osen is one of the sushi places that serves fresh & good quality fish to your table. I've been to the silver lake location several times because of their great food and cozy-japanese-like vibe; and it was my first time visiting the irvine location! Irvine location definitely has more of this luxurious ambiance - feels like omakase place. All the staff were very friendly and nice too! I had a big company with me, so we ordered various menus, but if it's two people, I would definitely recommend to get a toro uni bowl, salmon salad, and one premium chirashi so you can share everything. The portion is really really generous, so no need to order extra. Itd be the best if you can try little bit of everything - but that would only work with big group. I would love to come back real soon! I need that chirashi regularly ahaha

I visited Izakaya Osen today for mother's day lunch with my family. Omakase bowl was super delicious and service was good especially manager was so friendly. I'll definitely comeback again!!

Best sushi place in Orange county, and even better service from Philip. Great vibe and food.

I've been trying to write a review for a while. My family and I have been going to Izakaya Osen for the last 6 to 8 months now. Every time we go there, we always seat at the bar and the chefs always treat us well. Sometimes they even make something special for us. The sushi and sashimi are the freshest I've tried compared to other local sushi restaurants. The hachi mori sushi set is so worth it with all the different type of fishes and presentation is always on point. One of our favorite dishes is the Omakase Bowl. If you are in the area, you need to try this restaurant.