A Steakhouse to Indulge in Premium Matsusaka Beef and an Extensive Variety of Drinks

Located just a 5-minute walk from JR Shinjuku Station’s West Exit, 300B ONE Shinjuku is a hidden gem for meat lovers, offering premium-quality meats, including Matsusaka beef (a highly prized type of Japanese wagyu known for its marbling and flavor). You’ll be amazed by the exceptional meat quality, generous portions, and reasonable prices. The menu features a variety of creative dishes, from steaks and hamburg steaks to meat sushi (slices of beef served on rice), roast beef, and beef tongue stew, making it a dream destination for any meat enthusiast. For those with a big appetite, the restaurant also offers an all-you-can-eat course, allowing you to fully indulge in Matsusaka beef, known as "the king of meat."

Steak is the centerpiece of the dining experience at 300B ONE. For those who want to fully immerse themselves in the rich flavors of premium beef, the Beef Ribeye Steak is a must-try. Available in four impressive sizes—Mega (350g), Giga (1,000g), Tera (1,500g), and Peta (2,000g)—it’s perfect for satisfying any level of appetite. Another standout dish is the Premium Wagyu Steak – Matsusaka Lean Beef, which showcases the delicate flavors and tender texture of Matsusaka beef, one of Japan’s top three wagyu brands. This dish highlights the natural umami of lean beef, offering a truly memorable culinary experience.
For those seeking variety, the Premium All-You-Can-Eat Course is a fantastic option. With 75 menu items covering beef, pork, chicken, and desserts, this course promises a fulfilling and satisfying meal for everyone.

Here’s an introduction to our à la carte menu.
The Tamago TKG is a luxurious rice bowl topped with grilled beef and three rich egg yolks, offering a decadent take on tamago kake gohan.

The Sushi menu features classics like tuna and salmon, alongside unique options such as homemade ham, premium roast beef, and Matsusaka beef sushi. Known for its tenderness and quality, the Matsusaka beef sushi is a must-try.

The Tokyo Miso Pork Cutlet uses premium Yonezawa pork, fried to crispy perfection. Paired with a special miso sauce, it highlights the pork’s natural sweetness and richness.

Our desserts are all handmade without additives, offering natural flavors. From chocolate cake to creamy pudding, each dessert is crafted to perfectly round off your meal.

Lastly, 300B ONE boasts an extensive drink menu, including beer, highballs, wine, and cocktails—all offered at reasonable prices to complement your meal.

Located in the basement of a building, just a 5-minute walk from Shinjuku Station’s D5 Exit, 300B ONE Shinjuku offers high-quality meats, including Matsusaka beef, at excellent value. With a menu that spans from steaks and hamburg steaks to meat sushi, ramen, and curry, this steak izakaya (a Japanese-style pub) is a haven for meat lovers. The restaurant also offers an all-you-can-eat course, ensuring you leave completely satisfied. The spacious interior features large wooden tables, creating a relaxed and inviting atmosphere. Whether you're dining solo, with a small group, or hosting a large gathering, 300B ONE caters to a variety of occasions.