Where can I find Mega burger bun in Hallein?

Mega burger bun can also be found in these cities:

Abtenau Bergheim bei Salzburg Burgfried Elsbethen Faistenau Freilassing Golling an der Salzach Grödig Heuberg Kuchl Oberwinkl Puch Salzburg Thalgau

You can also find this in Hallein:

Cake Glaze Peanut Butter Ice Cream Desserts Meat Products Instant Coffee Poppy Seed Roll Canned Fruit Olive Oil Champagne Aperitif