Where can I find Mega burger bun in Beckenried?

Mega burger bun can also be found in these cities:

Altdorf Buchrain Buochs Ebikon Emmen Engelberg Goldau Horw Ibach SZ Ingenbohl Kriens Küssnacht Lucerne Rain Rotkreuz ZG Sarnen Stans Unterägeri

You can also find this in Beckenried:

Pudding Decorative Sugar Three-Grain Bread Cereals Delicatessen Sausage Spice Pastes Mashed Potatoes Raisin Roll Canned Sausage