Where can I find Mega burger bun in Romanshorn?

Mega burger bun can also be found in these cities:

Abtwil SG Amriswil Arbon Au Bischofszell Constance Flawil Friedrichshafen Goldach Gossau Heiden Herisau Immenstaad am Bodensee Kreuzlingen Langenargen Markdorf Meckenbeuren Meersburg Oberteuringen Rheineck Rorschach St. Gallen Sulgen Tettnang Teufen Thal Tägerwilen Uhldingen-Mühlhofen Uzwil Widnau Wittenbach Zuzwil

You can also find this in Romanshorn:

Rice Pudding Baking Powder Spelt Bread Nut Nougat Cream Balsamic Vinegar Pork Spice Blends Potato Products Rye Roll Canned Tomatoes