Soak the mushrooms in warm water for 15 minutes. Rinse the defrosted fish in cold water, pat dry and cut into 1 cm cubes. Mix 1/2 tbsp rice wine and salt and fold into the fish cubes.
Wash and clean the peppers and cut into cubes. Cut the bamboo into small cubes. Mix the cornstarch with 5 tbsp water. Cut the mushrooms into strips without the stalks.
Heat the oil, stir-fry the fish cubes for approx. 2 mins. Fry the vegetables and mushrooms for 2 mins. Deglaze with the remaining rice wine. Stir in the cornstarch, mix in the fish again and leave to stand for 1 min. Season with salt and drizzle with sesame oil.