Where can I find Mega burger bun in Ohmstal?

Mega burger bun can also be found in these cities:

Balsthal Egerkingen Egolzwil Herzogenbuchsee Huttwil Langenthal Malters Menziken Murgenthal Oberkirch Oensingen Oftringen Reiden Reinach Rothrist Ruswil Schöftland Sempach Sursee Wolhusen Zell Zofingen

You can also find this in Ohmstal:

Edible Curd Grated Lemon Peel Flaxseed Bread Fruit Bar Pickled Vegetables Fresh Salt Schupfnudeln Whole Grain Rolls Mayonnaise