You’ll be amazed at how much more time you can spend on busy mornings! Now accepting pre-orders for Instagrammer Osaku’s recipe book [Lunchboxes Made in a Muffin Tin and Oven]
Gakken Holdings Co., Ltd. Press Release: October 24, 2025 To Members of the Press You’ll be amazed at how much more time you’ll have on your busy mornings! Now accepting pre-orders for Instagrammer Osaku’s recipe book, “Lunchboxes Made in a Muffin Tin and Oven” Once you’ve put the ingredients into a muffin tin, just leave it in the oven! Introducing an easy and innovative bento method that lets you make up to six bento side dishes at once. Gakken Holdings Co., Ltd.
(Shinagawa, Tokyo / President and CEO: Miyahara Hiroaki), a group company of Gakken Holdings Co., Ltd. Gakken (Shinagawa, Tokyo / CEO: Nanjo Tatsuya) has begun accepting pre-orders for its “6-dish muffin-shaped bento” (scheduled for release on November 13th) from Saturday, October 4th, 2025.
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https://www.amazon.co.jp/dp/4058025867/ Make six bento side dishes in one go using a muffin tin and oven cooking! We’re revealing an easy and revolutionary bento method to save you from busy mornings! Mornings are full of things to do: preparing breakfast, doing laundry, getting ready, making bento… The amount of effort and time spent on making bento every day can be surprisingly significant. If only we had a little more time and mental space… This book introduces
Instagrammer Osaku’s “muffin-tin bento” recipe, which will make that wish come true. Simply choose six main and side dishes, place them in a muffin tin, and then pop them in the oven. A luxurious bento is surprisingly easy to create. “Making lunch boxes using frying pans and other appliances is a pain because you have to keep an eye on the stove during busy morning hours, but with an oven, you can just leave it alone. This will solve all your problems. Making your lunch is fun, the finished product is satisfying, and you’ll be excited right up until the moment you open the lunch box. I hope you’ll experience that. I hope this book will make your busy daily kitchen time a little easier and inspire you to make lunches that are both nutritious and varied. (Excerpt from “PROLOGUE” in this book)
https://prcdn.freetls.fastly.net/release_image/2535/8287/2535-8287-f23bbf927ac0bff42537ac897ef8f966-3900×2518.jpg [Main Contents of This Book] Part 1: Muffin-Tin Side Dish Combination Collection Here are some examples of muffin-tin oven side dish combinations, packed into actual bento boxes. We’ll suggest some gorgeous bento boxes with a balanced flavor and color.
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https://prcdn.freetls.fastly.net/release_image/2535/8287/2535-8287-c5e4a6dfdb9d8968989c98340ad60f72-3900×2518.jpg Part 2: Main Dishes and Staple Food Catalog Introducing main dish recipes categorized by ingredients, including chicken, pork, beef, ground meat, processed meat, seafood, and canned goods. We’ll also introduce recipes for main dishes using rice and bread, such as grilled rice balls and toast sandwiches. Part 3: Side Dish Catalog Introducing side dish recipes categorized by ingredients, including red to orange vegetables, yellow vegetables, green vegetables, white vegetables, purple vegetables, mushrooms, seaweed, eggs, beans, and soy products. Vegetables are introduced by color, which is helpful when considering the overall color of your bento. Column: Prepare large quantities of side dishes in advance using simultaneous oven cooking Introducing recipes for side dishes that can be prepared in the oven.
https://prcdn.freetls.fastly.net/release_image/2535/8287/2535-8287-a8026b851fac02e65c9ec5c9084e2a45-3900×2518.jpg [Author Profile] Osaku A housewife who wants to enrich her life and her personal time with the oven. She promotes the appeal of oven cooking, where you can simply line up the ingredients, bake, and then leave them alone. Her books include “Just Line Up and Bake: Satisfying Meals in the Oven Range” (KADOKAWA). ■ Osaku’s Instagram is currently running a campaign where you can win a gift when you pre-order this book on Amazon! Author Osaku’s Instagram account is running a giveaway where 10 lucky winners who pre-order this book on Amazon will win a Wilton muffin tin (6 holes)! For more details, please see the Instagram account below. Instagram▶＠osaku_nogohan [Product Overview]
https://prcdn.freetls.fastly.net/release_image/2535/8287/2535-8287-40ed6c81a861fc4daa9830d035731dd4-774×1000.jpg ‘Muffin-shaped lunch box with 6 dishes at once’ Author: Osaku Price: ¥1,815 (tax included) Scheduled release date: Thursday, November 13, 2025 Format: B5 variable / 112 pages Digital version: Simultaneous distribution ISBN: 978-4-05-802586-4 Publisher: Gakken Inc. Gakken Publishing Website:https://hon.gakken.jp/book/2380258600 【To reserve or purchase this book, click here】 ・Amazon
https://www.amazon.co.jp/dp/4058025867/ ・Rakuten Books
https://books.rakuten.co.jp/rb/18364350/ ・Seven Net
https://7net.omni7.jp/detail/1107652528 ・Kindle
https://www.amazon.co.jp/dp/B0FWBDZJSZ/ ・Rakuten Kobo
https://books.rakuten.co.jp/rk/ababadf9de84338ab3bdc231ed181f5a/ ■Gakken Inc. https://www.corp-gakken.co.jp/ ・President and CEO: Nanjo Tatsuya ・Date of incorporation: January 13, 2009 (company name changed on October 1, 2022) ・Capital: 50 million yen ・Address: 2-11-8 Nishigotanda, Shinagawa-ku, Tokyo 141-8416 ・Business activities: Publishing and content, global business, medical and nursing publishing content, kindergarten and school business,
classroom-related business, e-commerce and online business, and advertising business. ■GAKKEN HOLDINGS CO., LTD.
https://www.gakken.co.jp/ ・President and CEO: Miyahara Hiroaki ・Date of incorporation: March 31, 1947 ・Capital: 19,817 million yen ・Sales: 185.5 billion yen, 79 consolidated subsidiaries (fiscal year ending September 2024) Listed on the Prime Market of the Tokyo Stock Exchange (Stock Code: 9470) ・Address: 141-8510 2-11-8 Nishigotanda,
Shinagawa-ku, Tokyo ・Telephone: 03-6431-1001 (Main) ・Business Description: Holding company established in 1946, engaged in education, medical care, and welfare-related businesses. Education: Classroom and cram school operations, including “Gakken Classrooms,” Publishing and content operations, such as educational materials, Preschool and school operations, such as textbooks and childcare supplies, Medical and Welfare: Serviced housing for the elderly, Dementia group homes, Childcare support operations, such as nurseries and after-school programs, Global: Activities and operations in over 150 countries.