Menupickcom lists publicly available information. We are not affiliated with the restaurants shown. How we source and check listings

Menupickcom

Kajiken

Ramen restaurant · $20 to $30 ·

112 S B St, San Mateo, CA 94401, United States

Menu and hours last checked

Kajiken

About Kajiken

If you're craving a delicious bowl of ramen in San Mateo, look no further than Kajiken, located at 112 S B St, San Mateo, CA 94401. This cozy ramen spot is perfect for anyone looking for a quick bite or a comforting meal. Whether you're in the mood to dine in, grab your food to go, or have it delivered, Kajiken has got you covered with all the service options you need.

Kajiken isn’t just about the noodles-though their ramen is the star of the show-it also offers a range of options to enjoy with your meal. They serve alcohol and beer, making it an ideal place for a casual evening out or a laid-back lunch. The comfort food menu is perfect for those who just want something quick and satisfying, with flavors that hit the spot every time.

The atmosphere at Kajiken is relaxed and welcoming, making it a great choice for both a solo visit or a casual hangout with friends. Whether you're sitting down to savor your meal or picking up your order to enjoy at home, the focus is always on delicious, high-quality food. If you’re a fan of ramen and love having a variety of options, Kajiken will definitely become one of your go-to spots in the area.

Where this information comes from

Prices and dish names are transcribed from the restaurant's printed menu, photographed in August 2026 and reproduced on the menu page. Hours, address and service options come from the restaurant's public business profile. An editor confirmed the restaurant was trading on 4 September 2026. Something wrong? Tell us.

Photos

Business info

Service options

  • Delivery
  • Takeaway
  • Dine-in

Highlights

  • Fast service
  • Serves local specialty

Popular for

  • Lunch
  • Dinner
  • Solo dining

Accessibility

  • Wheelchair-accessible entrance
  • Wheelchair-accessible seating
  • Wheelchair-accessible toilet

Offerings

  • Alcohol
  • Beer
  • Comfort food
  • Quick bite

Dining options

  • Lunch
  • Dinner
  • Seating
  • Table service

Amenities

  • Toilet

Atmosphere

  • Casual
  • Cosy
  • Trendy

Crowd

  • Groups
  • Tourists

Planning

  • Usually a wait
  • Accepts reservations

Payments

  • Credit cards
  • Debit cards
  • NFC mobile payments
  • Credit cards

Children

  • Good for kids
  • High chairs

Parking

  • Free of charge street parking
  • Paid parking lot
  • Paid street parking
  • Parking

Opening hours

  • Monday 11:00 AM - 02:00 PM ,05:00 PM - 09:00 PM
  • Tuesday 11:00 AM - 02:00 PM ,05:00 PM - 09:00 PM
  • Wednesday 11:00 AM - 02:00 PM ,05:00 PM - 09:00 PM
  • Thursday 11:00 AM - 02:00 PM ,05:00 PM - 09:00 PM
  • Friday 11:00 AM - 10:00 PM
  • Saturday 11:00 AM - 10:00 PM
  • Sunday 11:00 AM - 09:30 PM

Hours can change on public holidays. Call ahead if you are making a special trip.

Location

112 S B St, San Mateo, CA 94401, United States

Diner notes

4.5 4.5 out of 5 · 643 notes
  • 5 stars 519
  • 4 stars 142
  • 3 stars 36
  • 2 stars 17
  • 1 stars 28
4 out of 5
This place recently opened in Dublin. I have had tsukemen (ramen with dipping sauce), but have not had abura soba before so I had to try it. This place was super busy at noon. Probably because this place was still quite new. Good thing we went there around 11:30 so we did not have to wait. I ordered their #1 signature dish: Homura Aburasoba. Some people may not want to eat a raw egg, but I wanted it. Just hope their egg is high quality and fresh. I mixed everything up and tasted it - not bad. I added their condiments: fried garlic, sesame, chili oil and vinegar as I like heavy flavors. I thoroughly enjoyed it. I also ordered an Asahi draft beer to go with my noodles. My friend ordered the Soboro Aburasoba, but substituted the raw egg with an Ajitama (seasoned egg). I am sure she enjoyed it as well as she finished it before I finished my bowl. The ponzu karaage had some grated daikon with ponzu and green onions. It added another layer of flavors to the fried chicken, but the fried chicken was juicy and hot. I would order it again. I must admit - I still like ramen with soup better as the soup is my favorite component of ramen. I also started enjoying tsukemen as my most recent trip to Japan converted me.
L Lon.food.travel Ate here , 17:24 am
4 out of 5
There's always a line for this restaurant so be prepared to wait. Once seated service is relatively quick. Love the flavor of the noodle dishes. They're ramen noodles (not gluten-free) without the broth and you can mix different spices into your dish. I ordered the vegan and added a poached egg. However once the fried tofu gets cold, it becomes rubbery. Next time I'd like to try their rice dishes.
GG G G Ate here , 17:24 am
4 out of 5
Waygu Aburasoba 3 meat raw, very chewy, doesn’t meet the pricey waygu beef expectation; wish they can have a normal beef one with cheaper price; sauce creamy, not very flavorful Nikumori Aburasoba 4 dry noodles, spicy minced pork, slightly tough & chewy pork slices, green onions, poached egg, medium spicy Keema Curry Aburasoba 5 dry noodles, curry minced pork, parsley, ajitama, only half egg, super flavorful Soboro Aburasoba 4 dry noodles, soy marinated ground chicken, green onions, sesame seeds, ajitama, slightly sweet, strong onion (slightly bitter) after taste, flavorful Optional toppings: sesame seeds, garlic powder, chili oil, white vinegar
CL Cindy Lu Ate here , 17:24 am

Eaten at Toddle Inn?

Tell us what you ordered and what it cost. Two or three sentences about one dish is more useful to the next person than a star rating.

Please write from your own visit - we don't publish notes copied from other sites. 0 / 600

Notes are read by an editor before they appear, usually within two working days.

More places we've checked in San Mateo

Nearest first, then across the Rio Grande Valley.

All San Mateo listings
Menu Directions