Where can I find Mixed rolls in Riken?

Mixed rolls can also be found in these cities:

Aarau Balsthal Buchs Egerkingen Egolzwil Erlinsbach Gränichen Herzogenbuchsee Huttwil Langenthal Lostorf Murgenthal Oberkirch Oensingen Oftringen Olten Reiden Rothrist Schöftland Schönenwerd Suhr Sursee Unterentfelden Zell Zofingen

You can also find this in Riken:

Baked Goods Yeast Fresh Pumpernickel Breakfast Cereals Olives Drinks Dry Herbs Spaetzle Snacks Horseradish