Fast Food & Grill · Practical guide
Big Boy Japan Guide for Tourists: 100% Beef Otawara Steak & Unlimited Curry Bar
Prices, ordering steps, payment details, and common mistakes — in one place.
Quick Facts
| Feature | Details |
|---|---|
| Category | Dining / 100% Beef Hamburg Steak & Unlimited Salad/Curry Buffet (Big Boy Japan Official Website) |
| Store Count | Approximately 170–180 locations nationwide (operating from Hokkaido [including Victoria Station] to Honshu, Shikoku, and Kyushu), operated by Big Boy Japan Co., Ltd. (Zensho Holdings Group) (Store Locator) |
| Ordering Style | Booth or table seating; order all steaks, patties, and buffet combinations via tabletop multilingual digital touchscreen tablets; autonomous robotic delivery carts; cook meat to your liking on personal tabletop heating stones; pay at cashier/self-checkout |
| Membership Required? | No reservation or membership required for dining (walk-ins welcomed) |
| Approximate Price Range | Daytime average ~¥1,000–¥1,500; evening average ~¥1,500–¥2,500; signature Otawara Hamburg steak ~¥800–¥1,200; unlimited 4-part Buffet Bar add-on ~¥500–¥700; all tax-included (as of September 29, 2026; subject to revision) |
| Payment Methods | Cash, major credit cards (Visa, Mastercard, JCB, American Express, Diners Club, UnionPay), Japanese transit IC cards (Suica, PASMO, etc.), electronic money (iD, 楽天Edy, QUICPay), smartphone QR code apps (PayPay, d-barai, 楽天ペイ, au PAY, LINE Pay, Merpay), and Zensho Points |
| Multilingual Support | Tabletop touchscreen ordering tablets feature multilingual language toggles (English, etc.) with full-color photos |
What it is
Big Boy Japan, operated by restaurant conglomerate Zensho Holdings (the powerhouse behind Sukiya and Hama-sushi), is Japan's premier American-diner-style steak and grill restaurant chain. Marked outside by its famous mascot statue "Bobby-kun" in red-and-white checkered overalls, Big Boy is celebrated for its signature *"Direct-Flame Grilled Coarse-Ground Beef Otawara Hamburg" (Chokabi-yaki Kurabiki Beef Ōtawara Hamburg)—a 100% pure beef barrel-shaped patty seared over open flames and served rare on a sizzling cast-iron platter with a personal tabletop heating stone (Yaki-ishi), allowing diners to sear each bite to their desired doneness. What truly elevates Big Boy is its legendary 4-part unlimited buffet: all-you-can-eat fresh Salad Bar, Soup Bar, Rice Bar, and rich Japanese beef Curry Bar*!
How to order
Dining at Big Boy Japan is hearty, interactive, and completely digital:
- Spot Bobby-kun & take your seat: Look for the smiling Big Boy mascot statue outside. Staff or automated seating displays will guide you to a booth table.
- NO Otoshi cover charge: Enjoy honest family pricing—Big Boy charges zero cover fee and zero table charge (¥0)!
- Switch tablet to English: Pick up the tabletop touchscreen ordering tablet and select English.
- Choose your entree & Buffet Bar option:
- *Otawara Hamburg Steak (大俵ハンバーグ)*: 100% pure beef patty served with a personal sizzling heating stone. Choose demi-glace, onion, or garlic sauce.
- *Add the Full Buffet Set (Viking Set): Unlocks unlimited trips to the Salad Bar, Soup Bar, Rice Bar, and Curry Bar*!
- Visit the Buffet Bars: While your steak is grilling, walk up to the buffet island:
- Salad Bar: Fresh lettuce, broccoli, cherry tomatoes, pasta salads, potato salad, and fruit gelatin.
- Soup Bar: Two daily hot soups (such as sweet corn potage and savory onion soup).
- Rice & Curry Bar: Ladle steaming rice and rich Japanese beef curry onto your plate!
- Delivery by robots: Cheerful musical robotic carts or servers deliver your sizzling cast-iron platter.
- Sear your beef on the hot stone: The server will slice your barrel-shaped beef patty down the center tableside. Pick up bite-sized pieces with your fork or tongs and press them against the red-hot circular stone on your platter to sizzle to your exact liking!
- Pay at automated self-checkout: Take your printed check slip to the front cashier or automated payment terminal to complete payment.
What to order first
Dishes below reflect core brand staples officially featured on the Big Boy Japan Official Website and verified row records:
- *Direct-Flame Coarse-Ground Beef Otawara Hamburg (Chokabi-yaki Kurabiki Beef Ōtawara Hamburg - 大俵ハンバーグ)*: Big Boy's flagship masterpiece; 100% pure beef patty seared over open flames, served with a personal sizzling heating stone for custom searing (~¥800–¥1,200 tax-included as of September 2026).
- *The Full Buffet Set (Viking Set)*: Unlimited access to the Salad Bar, 2 types of Soup, Steamed Rice, and Japanese Beef Curry (~¥500–¥700 add-on).
- Direct-Flame Grilled Sirloin Steak: Tender beef steak grilled over direct flame with savory garlic soy sauce.
- *Hand-Kneaded Hamburg with Fried Egg (Tegone Hamburg)*: Classic tender beef-and-pork hamburger patty topped with a sunny-side-up egg.
- Sweet Corn Potage Soup: A customer-favorite creamy sweet corn soup from the unlimited soup bar.
Payment & practical info
Practical dining and payment guidance based on official Zensho policies (consult the Official Store Directory for branch locations):
- Accepted Payment Methods: Accepts cash, international credit cards (Visa, Mastercard, JCB, American Express, Diners Club, UnionPay), Japanese transit IC cards (Suica, PASMO, etc.), electronic money (iD, 楽天Edy, QUICPay), and smartphone QR code apps (PayPay, d-barai, 楽天ペイ, au PAY, LINE Pay, Merpay).
- *Free Stone Re-Heating (Ishi Kōkan): If your sizzling table stone cools down before you finish eating your beef, simply tap the tablet screen or ask staff for "Yaki-ishi kōkan"*—they will bring a piping-hot fresh stone for free!
- Immense Value for Hungry Travelers: Adding the buffet set turns your meal into an unlimited feast of Japanese curry, fresh salads, and hot soups, making it an incredible value after long days of walking.
- Wi-Fi & Power Outlets: Availability varies by branch; dining booths generally do not provide customer power sockets.
- Tax-Free Status: Not eligible for tax-free shopping. Restaurant dining is domestic consumption.
Good to know / Common mistakes
- Not cooking the 100% beef patty thoroughly: The Otawara Hamburg is served medium-rare inside so that it doesn't dry out. Always use your personal sizzling heating stone to cook each bite to your preferred temperature before eating!
- Skipping the Curry Bar: Don't just get salad—the curry bar is packed with rich, savory Japanese beef curry that you can pour endlessly over white rice!
- Requesting a new hot stone: If your round stone stops sizzling, don't eat lukewarm meat! Staff will gladly bring you a fresh glowing-hot stone at zero extra charge.
- Tipping staff: Tipping is never accepted in Japan. Settle your exact bill total at the front automated checkout machine.
FAQ
Q1: What is the "Otawara Hamburg"? The Otawara Hamburg is Big Boy's signature 100% pure beef patty shaped like a traditional rice bale (Otawara). It is seared on direct flames and finished tableside on a personal sizzling heating stone.
Q2: What is included in Big Boy's buffet bar? The full Viking buffet set includes all-you-can-eat fresh salads, pasta salads, two daily hot soups, steamed Japanese rice, and unlimited Japanese beef curry!
Q3: Can foreign tourists easily order in English? Yes. Every table features a digital touchscreen tablet with English language support and clear photos for all steaks, sauces, and buffet options.
Sources
- Big Boy Japan Official Website: https://www.bigboyjapan.co.jp/ (Verified: 2026-09-29)
- Big Boy Store Directory: https://maps.bigboyjapan.co.jp/jp/index.html (Verified: 2026-09-29)