Where can I find Mega burger bun in Benken?

Mega burger bun can also be found in these cities:

Bauma Bütschwil Ebnat-Kappel Einsiedeln Glarus Hinwil Hittnau Lachen Niederurnen Näfels Pfäffikon Rüti Uznach Wald Wattwil Wetzikon

You can also find this in Benken:

Yogurt Pizza Flavors Honey Popsicle Meat Mineral Water Coffee Drinks Pretzel Cookies Canned Vegetables