Mushroom forest

Shiitake mushroom / Simmerd beef

Fried meat ball / Patat

Potato mochi

Grilled beef

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Yama's butter soysauce

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Rice with various mushrooms

Imo mochi (potato cake) is one of the soul foods in Hokkaido. 

In old days, rice cultivation (glutinous rice) technology was underdeveloped in Hokkaido.  People used abundantly produced potatoes as a substitute for "mochi".