Where can I find Mega burger bun in Gaisberg?

Mega burger bun can also be found in these cities:

Alkoven Burgfried Elsbethen Eugendorf Faistenau Frankenmarkt Henndorf am Wallersee Heuberg Mattsee Mondsee Neumarkt am Wallersee Oberwang Oberwinkl Puch Pöllach Salzburg Sankt Georgen im Attergau Schneegattern Strobl Thalgau Unterach am Attersee Weyregg am Attersee Zell am Moos

You can also find this in Gaisberg:

Baked Goods Pumpernickel Breakfast Cereals Pies Cola Food Nuts Vitamins And Minerals Fix Products Sweet Mares