Drain the bamboo shoots. Wash the meat, dab dry and cut into strips. Clean, wash and cut the peppers into strips. Clean, wash and cut leek into rings.
Clean and trim the mushrooms. Clean, wash and seed 2 chillies and cut them into pieces. Peel and slice ginger and garlic. Prepare noodles in boiling salted water according to package instructions.
Heat oil in a wok. Season meat with salt and fry for 3-4 minutes, turning. Remove the meat. Add leek, paprika, bamboo shoots, chilli, ginger, mushrooms and garlic and fry for about 5 minutes.
Season with salt and pepper and remove. Add stock and soy sauce and simmer for 2 minutes. In the meantime, stir the starch with a little water until smooth and thicken the sauce until it is slightly creamy. Add all the ingredients and heat while turning.
Season to taste with salt and pepper. Arrange everything on preheated plates and garnish with the remaining chillies.