Where can I find Mashed potatoes in Roches?

Mashed potatoes can also be found in these cities:

Aesch Biberist Biel Bienne Breitenbach Delémont Derendingen Gerlafingen Grenchen Langendorf Laufen Moutier Nidau Solothurn Tavannes Utzenstorf Zuchwil

You can also find this in Roches:

Everything From Milk Baking Mixtures Cream Stiffener Spreads Savory Food For Diabetics Menus With Meat Fruit Spritzers Filter Coffee Baguette Roll Salt Sticks