# Lettuce Burger Buns The MOS Yasai Burger is Served Inside of a Leafy Lettuce Bun By Laura McQuarrie | Published 2016-04-13 | Lifestyle Source: Trend Hunter, https://www.trendhunter.com/trends/lettuce-bun References: [en.rocketnews24](http://en.rocketnews24.com/2016/04/08/japans-mos-burger-replaces-hamburger-buns-with-lettuce-for-limited-natsumi-range/) & [mos.co.jp](http://www.mos.co.jp/global/) At [MOS Burger](https://www.trendhunter.com/trends/yangnyeom-chicken-tatsuta-burger) in Japan, the all-new MOS Yasai Burger (meaning "Vegetable Burger") is sold on a leafy green lettuce bun. On the inside of this unusual burger, MOS Burger serves up a slice of tomato, shredded lettuce, onions and a beef patty that's been dressed with a flavorful sauce. By replacing the burger buns with a gluten-free vegetable option, the burger product seems like a much healthier option than most fast food places offer. Alongside this new Yasai Burger, MOS Burger also unveiled a Teriyaki Chicken Burger, which is a similar option that includes sliced onions, mayonnaise and grilled chicken rather than beef. In the past, Japan's MOS Burger has experimented with other unconventional bun formats, including donuts, tomato halves and sauce-covered bread. ## Trend Insights (Trend Hunter) - Score: 2.1/10 - Popularity: 41% | Activity: 15% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Gen Z, Millennial, Gen X - Top markets: Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Lifestyle](https://www.trendhunter.com/lifestyle) > [Food](https://www.trendhunter.com/food) ## Key Themes ### What Makes This Trend Stand Out - **Gluten-free Burger Buns:** Replacing traditional buns with gluten-free vegetable options offers a healthier alternative to fast food. - **Unconventional Burger Bun Formats:** Experimenting with unconventional bun formats, such as donuts, tomato halves, and sauce-covered bread, creates unique and memorable dining experiences. - **Vegetarian and Vegan Burger Options:** Providing plant-based alternatives like the MOS Yasai Burger allows fast food chains to cater to the growing demand for vegetarian and vegan options. ### Sectors Adopting This - **Fast Food:** The fast food industry can explore healthier, gluten-free alternatives for burger buns to cater to health-conscious customers. - **Food Innovation:** The food innovation industry can embrace unconventional bun formats to create unique and buzz-worthy culinary experiences. - **Plant-based Food:** The plant-based food industry can develop more vegetarian and vegan burger options to cater to the increasing demand for meatless alternatives. ## Related on Trend Hunter - [Oversized Tofu Burgers](https://www.trendhunter.com/trends/atsuage-tofu-japanese-burger.md) - [Autumnal Lunar Burgers](https://www.trendhunter.com/trends/mos-burger-tsukimi-focaccia.md) - [Gochujang-Spiced Burgers](https://www.trendhunter.com/trends/yangnyeom-chicken-tatsuta-burger.md) - [Salad-Style QSR Sandwiches](https://www.trendhunter.com/trends/mcdonalds-salad-burger.md) - [Deconstructed Cheeseburger Bowls](https://www.trendhunter.com/trends/cheese-burger-don.md) - [Burger-Flavored Potato Snacks](https://www.trendhunter.com/trends/mos-burger-potato-torottama-cheese-teriyaki-burger-flavor.md) - [Online Rice Burger Shops](https://www.trendhunter.com/trends/mos-rice-burger.md) - [Butter-Soaked Burger Buns](https://www.trendhunter.com/trends/guilty-porcini-burgers.md) - [Loaded Maitake Mushroom Burgers](https://www.trendhunter.com/trends/konya-wa-maitake-burger.md)