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San Mateo

Kajiken has received positive feedback for its unique Aburasoba dishes, quick service, and inviting ambiance. Customers appreciate the flavorful noodles and the option to customize their bowls with various toppings.

Discover Kajiken: San Mateo's Aburasoba Haven In Downtown California's Heartland 

Nestled in the vibrant Downtown neighborhood of San Mateo, Kajiken is the ultimate destination for lovers of innovative Japanese cuisine, specializing in the flavorful and satisfying world of aburasoba — a delightful soupless ramen that’s making waves in California.

Kajiken’s menu is an ode to aburasoba, a Japanese dish that skips the broth but is brimming with rich, umami-packed sauces, perfectly chewy noodles, and a variety of vibrant toppings. Whether you’re craving the hearty mushroom aburasoba — a vegan delight that’s both filling and flavorful — or the spicy minced pork nikumori aburasoba, this spot delivers bold tastes that excite your palate.

Kajiken is praised for its quick and efficient service, even when the line stretches outside, reflecting the growing demand for this unique dining experience. Guests appreciate the flexibility to spice up their bowls with house chili oil and vinegar or add sesame seeds for an extra pop of flavor. The restaurant’s cozy and clean atmosphere makes it a great spot for both casual dinners and group outings.

 is accessible with options including free street parking and paid lots nearby, making it hassle-free to visit.

 No, reservations are not accepted. It's recommended to arrive early to avoid long wait times.

 Unfortunately, there is no outdoor seating available.

 Kajiken operates from Wednesday through Monday, 11 a.m. to 2 p.m. and 5 p.m. to 9 p.m. They are closed on Tuesdays.

Experience the Flavorful Vibe of San Mateo’s Downtown Scene

Kajiken is more than just a restaurant; it’s a flavorful slice of San Mateo’s dynamic dining culture. The positive community sentiment reflects the appreciation for the kitchen’s dedication to authentic and inventive aburasoba creations. Whether you’re a local or a foodie traveler, preparing to savor these rich noodle bowls is a must-do culinary adventure when visiting California’s Bay Area.

North America

United States

Nestled in the heart of Downtown San Mateo, Kajiken is a culinary gem that invites you to experience the rich flavors of Japanese cuisine. Known for its unique take on aburasoba, a soupless ramen dish, this vibrant eatery has quickly become a favorite among locals and visitors alike. The moment you step inside, the warm ambiance and the tantalizing aroma of freshly prepared dishes envelop you, promising an unforgettable dining experience.

At Kajiken, the star of the menu is undoubtedly the aburasoba. This dish is a delightful blend of perfectly cooked noodles tossed with rich, savory sauces, topped with fresh ingredients. The **Mushroom Aburasoba** stands out with its earthy flavors and a hint of spice, making it a must-try for both vegans and non-vegans alike. For those craving something heartier, the **Roast Beef Aburasoba** is a crowd favorite, featuring tender slices of beef that melt in your mouth, complemented by a medley of toppings that elevate the dish to new heights.

A fun fact about Kajiken is that it has quickly gained a reputation for its efficiency. Despite the often long lines outside, diners are seated promptly, allowing you to savor your meal without a long wait. This efficiency is a testament to the restaurant's commitment to quality and customer satisfaction.

Conveniently located at 112 S B St, Kajiken is just a short walk from several local attractions. After your meal, consider exploring the nearby Central Park or the San Mateo County History Museum. Both spots offer a glimpse into the local culture and history, making for a perfect post-meal adventure.

Kajiken is renowned for its delicious aburasoba, particularly the Mushroom and Roast Beef variations.

The unique flavors and quick service make it a must-visit spot for ramen lovers.

Whether you're a local or just passing through, make sure to stop by Kajiken for a meal that promises to delight your taste buds. With its inviting atmosphere and exceptional dishes, it's a dining experience you won't want to miss.

https://www.google.com/local/review/rap/report?postId=ChZDSUhNMG9nS0VJQ0FnSURmLXFld1RnEAE&d=17924085&t=1

places/ChIJoRzWonufj4ARgwyltSJXaP4/reviews/ChZDSUhNMG9nS0VJQ0FnSURmLXFld1RnEAE

Happy to see that there was a vegan dish as this was my first time trying dry ramen. There was a long line outside but it moved quickly and efficiently. The Mushroom Aburasoba (vegan) was nice and filling. I added some extra spice which made the dish more flavorful and enjoyable. I wasn’t the biggest fan of all the pepper but I’m sure pepper fans would appreciate it. As you can see I enjoyed every bit of it but wasn’t a big fan of the raw onions

https://www.google.com/local/review/rap/report?postId=ChZDSUhNMG9nS0VJQ0FnSUNYcVBYV0FnEAE&d=17924085&t=1

places/ChIJoRzWonufj4ARgwyltSJXaP4/reviews/ChZDSUhNMG9nS0VJQ0FnSUNYcVBYV0FnEAE

YUM! So good, we have been wanting to hear for so long and I am glad we finally made it. We came on a Saturday at 11:50am, and we didn’t wait long in line at all because we said yes to a table in the sun that others did not want, and it worked out great. Absolutely loved our food, the karaage chicken was good but we wish it had sauce. Both the aburasobas we got were awesome, we like the curry one the best.

https://www.google.com/local/review/rap/report?postId=ChdDSUhNMG9nS0VJQ0FnSUNIcnAzU25nRRAB&d=17924085&t=1

places/ChIJoRzWonufj4ARgwyltSJXaP4/reviews/ChdDSUhNMG9nS0VJQ0FnSUNIcnAzU25nRRAB

There was already quite the line 15 min after opening so definitely set out earlier. Tried the original and roast beef aburasoba —both were tasty and filling. Their tamagoyaki was delicious, highly recommend. Overall, it was good but I really don’t think it’s worth a 30+ minute wait. It might be better for people who like spice since we didn’t order anything spicy. Takeout seems like it’d be more worth it.

https://www.google.com/local/review/rap/report?postId=ChZDSUhNMG9nS0VJQ0FnSUM3NTR1clRnEAE&d=17924085&t=1

places/ChIJoRzWonufj4ARgwyltSJXaP4/reviews/ChZDSUhNMG9nS0VJQ0FnSUM3NTR1clRnEAE

This place serves up some really delicious aburasoba! I got the mushroom aburasoba and it was excellent! The noodles have a good bite, and you can add any extra toppings that you like. Never knew vinegar + chili oil would taste so good! Do try the chili paste and sesame seeds available on the table. They add so much flavor to the bowl.
This place always has a line but it moves quickly- we waited for ~15 min before getting seated on a Saturday afternoon and it was totally worth it!
I’d highly recommend this place and we can’t wait to be back!

https://www.google.com/local/review/rap/report?postId=ChdDSUhNMG9nS0VJQ0FnSURiMG82NTlRRRAB&d=17924085&t=1

places/ChIJoRzWonufj4ARgwyltSJXaP4/reviews/ChdDSUhNMG9nS0VJQ0FnSURiMG82NTlRRRAB

Parking was easy enough, but with paid parking in a parking building 3 minutes away.

Went on a saturday. Arrived 15 minutes bedore opening and was seated quickly after opening hours began.

Service was good, even when requested some slightly customized variations of orders.

Atmosphere was good, quiet enough and good for conversations. Place was also reasonably clean.

Got some Aburasoba (Soupless Ramen)
- Roast Beef Aburasoba
- Nikumori Aburasoba (Spicy Minced Pork)
- Keema Curry Aburasoba (Curry Minced Pork)
& Char Siu Rice (Roast Pork)

Delicious Vegan Aburasoba at Kajiken in Downtown San Mateo

Kajiken, originally from Nagoya, Japan, opened its first U.S. location in San Mateo in February 2023, introducing the Bay Area to Aburasoba, a brothless ramen dish.

Kajiken, a distinguished culinary gem originally hailing from Nagoya, Japan, marked a significant milestone by opening its very first United States location in the vibrant city of San Mateo in February 2023. This launch brought the Bay Area's food enthusiasts an extraordinary specialty — Aburasoba, a distinctive style of brothless ramen that elevates traditional Japanese noodle cuisine through its rich and flavorful oil-based toppings.

Since opening its doors on February 8, 2023, Kajiken San Mateo quickly captured the attention of both ramen aficionados and curious newcomers alike. The launch day witnessed enthusiastic crowds, with eager patrons forming lines that stretched down the block — a testament to its immediate appeal and the excitement surrounding this innovative dining experience.

The remarkable uniqueness of Kajiken's Aburasoba quickly caught the eye of local media outlets, which featured the restaurant in various news stories. This coverage spotlighted Kajiken's pioneering role in introducing brothless ramen to the Bay Area food scene, emphasizing its cultural authenticity and innovative twist on Japanese cuisine.

 Kajiken opened its first U.S. location in San Mateo on February 8, 2023.

 The restaurant quickly gained popularity, with lines forming down the block on opening day.

 Kajiken was featured in local news outlets, highlighting its unique offering of Aburasoba.

A culinary gem in the heart of San Mateo, Kajiken beckons food enthusiasts with an array of tantalizing flavors and vibrant ambience. This delightful eatery, tucked away at 112 South B Street, captivates diners with its inviting atmosphere, where a fusion of traditional and modern Japanese cuisine comes to life. The air is infused with the rich aromas of perfectly grilled foods and simmering broths that transport you directly to the bustling streets of Tokyo. Inside, the decor merges simplicity with elegance, boasting wooden accents and warm lighting that create a cozy retreat for both casual diners and those celebrating special occasions. As you settle in, the friendly staff greets you with genuine smiles and an eagerness to guide your culinary exploration. The menu is a tantalizing voyage; from hearty ramen bowls bursting with umami flavors to the heavenly melt-in-the-mouth gyoza, every dish tells a story of passion and craftsmanship. At Kajiken, the experience transcends mere dining. It’s an invitation to immerse yourself in the art of Japanese flavors, accentuated by locally sourced ingredients that offer a fresh twist to each traditional recipe. Cozy up at the bar with a perfectly crafted sake or indulge in one of their signature sake cocktails, complementing your meal with refreshing notes. Located amidst San Mateo's downtown allure—a stone's throw from unique boutiques and lively cafés—Kajiken stands out as not just a restaurant, but as a destination where culinary artistry and community intertwine. A visit here promises not only a meal but a journey through Japan’s gastronomic landscape, making it a must-see spot for both locals and travelers alike.

Kajiken

Kajiken specializes in Aburasoba, a brothless ramen dish, offering a variety of unique and flavorful options.

Homura Aburasoba

Nikumori Aburasoba

Roast Beef Aburasoba

Original Aburasoba

Karamen Aburasoba

Mushroom Aburasoba

Keema Curry Aburasoba

Tantan Aburasoba

Soboro Aburasoba

Oroshi Ponzu Karaage

Original Karaage

Ika Geso Karaage

Takoyaki

Pan Fried Gyoza

Edamame

Chashu Rice

Mentaiko Rice

Roast Beef Rice

White Rice

Kajiken Menu

Nestled in the heart of San Mateo, Kajiken invites ramen enthusiasts and adventurous foodies to savor its signature aburasoba — a unique brothless ramen that elevates traditional flavors with inventive twists. This downtown gem crafts each bowl with fresh, bold ingredients, creating a memorable dining experience that blends authentic Japanese culinary artistry with a modern edge.

Begin your meal with a tempting selection of starters that showcase the vibrant flavors of Japanese street food. Whether you crave the crispy yet tender Original Karaage served with zesty lemon and creamy mayonnaise, or the deep-fried calamari Ika Geso Karaage drizzled with spicy mayo, each dish is a perfect prelude to your main course. For a lighter bite, the simple yet satisfying Edamame sprinkled with salt offers a fresh, clean taste.

 crispy fried chicken topped with grated daikon and tangy ponzu sauce, enhanced with fresh green onions.

 octopus-filled savory balls topped with okonomi sauce, mayonnaise, aonori, and bonito flakes for that authentic umami punch.

 golden dumplings served with refreshing ponzu dipping sauce.

Kajiken’s star attraction is undoubtedly its diverse range of aburasoba dishes, each boasting a harmonious mix of hand-selected ingredients and vibrant flavors. These soupless ramen bowls deliver a satisfying bite and rich taste profile perfect for those seeking a fresh take on ramen classics.

 features spicy minced pork, fresh Tokyo onions, bamboo shoots, seaweed, fish powder, chives, and a luscious raw egg yolk that binds the flavors.

 combines tender roast beef with crispy onions, green onions, chaliapin and yogurt sauces, finished with a raw egg yolk for an indulgent twist.

 a hearty, plant-based option featuring shimeji and king trumpet mushrooms, spinach, tofu, and red onions that delivers umami-rich comfort.

 delivers a spicy kick with diced chashu, chili powder, crunchy garlic infused with chili oil, cabbage, chives, bean sprouts, and raw egg yolk.

Beyond aburasoba, Kajiken offers satisfying rice dishes perfect for sharing or as a hearty side. The Chashu Rice presents diced braised pork with green onions and seaweed, while the spicy Mentaiko Rice combines fiery cod roe with fresh toppings — each bowl bursting with texture and depth. For those craving a protein-rich option, the Roast Beef Rice with yogurt sauce and black pepper provides a flavorful punch.

While Kajiken focuses on delivering a stellar aburasoba experience, it also serves beer to complement your meal and enhance your dining pleasure. The welcoming atmosphere and attentive service make it a great spot for groups seeking authentic Japanese flavors in San Mateo's vibrant downtown.

Savor authentic flavors at Kajiken in Downtown San Mateo! Indulge in exquisite dishes and a vibrant atmosphere. Reserve your table today!

Experience Kajiken: Authentic Dining in San Mateo

San Mateo County

A brothless ramen dish with various toppings and sauces.

Aburasoba

Japanese-style fried chicken served with mayonnaise and lemon.

Karaage

Deep-fried octopus balls with okonomi sauce, mayonnaise, aonori, and bonito flakes.

Pan-fried dumplings served with ponzu sauce.

Gyoza

Steamed young soybeans sprinkled with salt.

Discover Kajiken: San Mateo’s Soupless Ramen Gem

Tucked away in the heart of Downtown San Mateo at 112 South B Street, Kajiken offers a vibrant and unique twist on traditional Japanese cuisine. Known for its specialty, Aburasoba — a flavorful brothless ramen — this spot is a must-visit for foodies craving authentic yet innovative flavors. Whether you’re a local or a digital nomad exploring California’s culinary scene, Kajiken’s enticing menu promises a memorable dining experience.

Kajiken’s crowning jewel is undoubtedly its 

, a brothless ramen dish served with an array of savory toppings and rich sauces that deliver an explosion of umami with every bite. Priced at $15.95, this signature dish has won over many fans, including vegans who can enjoy the Mushroom Aburasoba variant that’s both tasty and filling. To complement the noodles, the menu also features Japanese classics like 

, a crispy fried chicken served with tangy mayonnaise and fresh lemon for $10.50, and 

, delightful deep-fried octopus balls topped with okonomi sauce, mayonnaise, aonori, and bonito flakes at $9.50. For lighter bites, try the pan-fried 

 dumplings with ponzu sauce or simply enjoy a healthy portion of 

, steamed young soybeans sprinkled with salt for $4.50.

Kajiken prides itself on efficient service despite its popularity, with lines that move quickly and a friendly atmosphere perfect for groups or solo diners. The restaurant welcomes guests for lunch and dinner and offers both dine-in and takeout options, accommodating busy schedules. Convenient payment methods including NFC, credit, and debit cards ensure smooth transactions.

Free and paid parking lots, and free street parking available nearby.

Indoor dining with a calm, clean atmosphere ideal for conversations.

Serves beer but no coffee or wine, focusing on complementing the dishes.

Kajiken’s commitment to authentic Japanese flavor with a modern touch makes it a standout in the Bay Area’s competitive dining scene. The unique Aburasoba dishes offer a new way to enjoy ramen, appealing to adventurous eaters and ramen aficionados alike. Customer reviews highlight the deliciousness of their mushroom aburasoba, the perfectly crispy karaage, and the welcoming vibe that keeps patrons coming back. Whether you’re looking for a hearty lunch or a satisfying dinner spot in San Mateo, Kajiken delivers quality, taste, and an inviting atmosphere all under one roof.

California

Discover Kajiken in San Mateo, offering innovative brothless ramen, vegan options, and quick service in Downtown San Mateo near key landmarks. Visit now!

Kajiken San Mateo Downtown: Unique Brothless Ramen Experience

Enjoy delicious, trendy ramen at Kajiken in San Mateo. Located in Downtown, offering quick, casual dining with vegan and vegetarian options. Book your table!

Explore Kajiken: San Mateo's Trendy Ramen with Unique Flavors

Learn about Kajiken's history from Nagoya to San Mateo, its unique brothless ramen dishes, and its popular spot in Downtown San Mateo. Discover more today!

Discover Kajiken's Irresistible Menu

Starters to Awaken Your Palate

Mains That Redefine Aburasoba

Delightful Rice Bowls and More

Beverages and Extras

Pausa Bar & Cookery

Sushi Yoshizumi

New York Pizza