#12 shiitake miso soup

1 tbsp canola oil
1/3 lb shiitake mushrooms, stems discarded, thinly sliced
1 tbsp freshly ground ginger
1 tsp soy sauce
4 cups water
5 green onions
1 carrot
a few tbsp miso (I use red miso), to taste
1 potato (diced small)

Heat oil in saucepan, add mushrooms, ginger and soy sauce and cook until mushrooms are browned on edges (5 mins). Add water, green onion, potato and carrot, cook until potato is done (~10 mins), add miso paste (I didn't measure, maybe 3+ tbsps), stir until all miso dissolves and serve.