Zetteria Brings Back the “Unadon Burger” for 990 Yen — Limited-Time Release from July 22
Key Takeaways: Zetteria’s Unadon Burger returns from July 22, 2026 at 990 yen including tax, layering grilled eel kabayaki, a soy-glazed patty of 100% Japanese-grown rice, a soft-cooked egg, and teriyaki sauce in one bun. It runs until early August at 268 planned locations, and each store stops selling once that day’s stock is gone. Zetteria’s “Unadon Burger” Returns for a Limited Time Zetteria, the hamburger chain operated by Burger One Co., Ltd. under the Zensho Holdings group, will once again offer its “Unadon Burger” for a limited time starting Wednesday, July 22, 2026. First launched last year to a strong response, the burger is positioned as a new way to enjoy the Day of the Ox (Doyo no Ushi no Hi). This year the company has increased the available quantity so more customers can enjoy it. A Japanese-Style Burger That Recreates “Unadon” The “Unadon Burger” layers grilled eel (kabayaki), […]
Zetteria Brings Back the “Unadon Burger” for 990 Yen — Limited-Time Release from July 22 Read More
