Mos Burger usually conjures images of wholesome, refined fast food – consistent quality, diverse menus, and a loyal fanbase.
But hold up! Japan's Mos Burger recently announced it's taking a detour onto the luxury highway, dropping what they're calling their "most expensive ever" gourmet rice burger: the "Grilled Domestic Eel Rice Burger." Only 1,000 sets will be available nationwide, priced at a cool ¥6,000 for a box of two. Slated for a limited online store release starting November 14, this premium offering is already sparking major buzz.

This "Grilled Domestic Eel Rice Burger" is no ordinary fast food — it's fully supervised by "Nihonryori Kanda," a prestigious restaurant that's held three Michelin stars for 19 consecutive years. Each box (containing two burgers) features a whole domestic eel, making it an ultra-premium Mos Rice Burger specifically designed for frozen home delivery.
"Nihonryori Kanda" Chef Hiroyuki Kanda himself oversaw every single detail, from the meticulous selection of eels and sauce seasoning to the overall burger design. Only high-grade eels with thick, firm flesh made the cut. Each one is hand-processed by skilled artisans and carefully grilled over charcoal, ensuring a fragrant, crispy skin and tender, succulent meat.

To achieve the perfect eel-to-rice ratio, the rice portion was specially adjusted for a more balanced texture. And that special sauce? It's not just any old recipe; it's a Mos-style recreation of the actual sauce used at "Nihonryori Kanda" itself.
You can drizzle the sauce as you eat, customizing each bite to your liking. This lets you savor the sweet umami of the charcoal-grilled eel while also enjoying the rich, decadent flavor of the sauce soaking perfectly into the rice.

This "Grilled Domestic Eel Rice Burger" isn't just Mos Burger Japan's most expensive product ever; it essentially transforms a luxurious unaju (eel rice box) meal into a convenient, handheld rice burger. While it definitely comes with a premium price tag and is only available for a limited online sale, for eel fanatics or adventurous foodies, this is shaping up to be a rare, top-tier culinary experience.


via: 日本摩斯官方線上商店