
Kaisen Kaiten Sushi Bar
In Santa Ana, value-conscious sushi and raw shellfish at OC's oldest remaining conveyor belt restaurant
Orange County previously had a wider range of conveyor belt sushi restaurants than it does today, where there are essentially two options: multiple U.S. locations of Japan’s Kura Sushi, and a single seemingly family-owned alternative, Kaisen Sushi in Santa Ana, nearly across from Costa Mesa’s South Coast Plaza. Kaisen’s confusing longer name – Kaisen Kaiten Sushi Bar – includes “kaiten,” Japanese for conveyor belt, and perhaps overpromises on the “sushi bar” part. The experience consists largely of sitting at a table and watching a single large conveyor move clear-covered dishes past your seat, unless you grab them first.
You can order items from a menu if they’re not circulating on the belt, which is quite common these days, as a substantial fraction of Kaisen’s rotating dishes focus on salmon. Historically, placing an order involved marking your choices on a sheet of paper and sending the paper to the kitchen inside a glass cup on the conveyor; after a change in ownership, the paper slips were (finally) replaced with a smartphone-based ordering system using Menusifu, a decided improvement.
As contrasted with Kura, Kaisen’s menu is more interesting – including legitimately worthwhile lobster hand rolls, raw oysters, soft shell crab, and raw shrimp – with many dishes at lower prices than Kura’s current $4 per plate, plus deluxe rolls that hit the $10.50 point (for up to eight pieces). Instead of one uniform plate price, Kaisen’s dish color determines whether you pay $2.00 to $5.25; dishes are stacked on your table and hand-counted by a server at the end. Our meals have tended to be less expensive at Kaisen than at Kura, sometimes markedly so, and sometimes not.
For much of its existence, Kaisen’s ambience was not great: It felt like an unimproved Kura from 1989 or earlier, with more limited seating space – worse than Kura’s very small Irvine Kura location – and sometimes chilly service that was rough-edged at best. Following its 2026 change in ownership, renovations cleaned up many of the cosmetic issues, freshened up the paint, and visually opened up the space. Now Kaisen offers better salmon and shellfish than Kura’s, sometimes better tuna, and an environment that’s less sonically chaotic for guests than its larger chain competitor.
There was a point when Kaisen’s appeal over Kura was more in quantity than quality, but Kaisen’s quality has rebounded since the pandemic, and Kura’s portion sizes have improved a little, changing the balance. Today, although we’d call it close to a toss-up between these options, our recommendation is to consider visiting Kaisen if you’re close to Costa Mesa, especially during off-peak hours, when you won’t have to wait for a table. Your chances of appreciating the experience for what it is will increase if you’re not ravenously hungry by the time you’re seated.
Stats
Price: $-$$
Service: Conveyor
Open Since: 2007
Address
3855 S. Bristol St.
Santa Ana, CA 92704
714.444.2161
Instagram: @kaisenkaiten2004