A casual steakhouse where you can enjoy high-quality domestic Wagyu beef at a great value

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. In addition, an all-you-can-eat course is also available, offering meat lovers a dreamlike experience where they can fully indulge in Matsusaka beef, often referred to as the "King of Meat."

Here are some of our recommended menu items.

A must-try for meat lovers, the Beef Ribeye Steak is thick, juicy, and incredibly satisfying. It's a hearty dish you can enjoy in a casual and lively atmosphere. Choose your preferred portion size: Mega (350g), Giga (1000g), Tera (1500g), or even Peta (2000g).

For a more special dining experience, we recommend the Premium Lean Matsusaka Beef Steak, made with one of Japan’s top three Wagyu brands. This luxurious steak highlights the tender texture and rich, natural flavor of lean Matsusaka beef. You can also enjoy the excitement of a live flambé performance right at your table. Available at 3,850 yen (tax included) per 100g.

At 300B ONE, you can indulge in delicious steaks to your heart’s content with friends or family in a relaxed setting.

Here are our recommended course menus.

First, for those who want to enjoy a bit of luxury in a relaxed setting, we suggest the "Special Course Featuring Matsusaka Beef and Japanese Cuisine" 8,800 yen (tax included). This special course centers around Matsusaka beef, one of Japan’s top three Wagyu brands, paired with the delicate flavors of traditional Japanese cuisine. It's perfect for days when you want something casual, yet a little special.

If you’re looking to eat to your heart’s content, the "Premium All-You-Can-Eat Course – Steak, Yakiniku, Meat Sushi, Original Dishes & Desserts (75 items, 2-hour limit)" for 4,580 yen (tax included) is highly recommended. From juicy steaks to grilled meats and meat sushi, you can enjoy a wide variety of dishes as much as you like. It’s ideal for lively gatherings with friends and family.

Enjoy delicious steaks and a warm, relaxing atmosphere filled with smiles and good times.

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.