Put rice in boiling salted water and let it swell for 20 minutes. Wash the chicken filet, dab dry and cut into strips. Heat oil in a pan and fry the meat strips in it until golden brown.
Season with salt and pepper and remove briefly. Clean and wash the leek, cut into rings and fry briefly in the frying fat. Dust with curry and deglaze with the stock. Drain pumpkin and fold in.
Mix sour cream and cornstarch and thicken the leek vegetables with it. Add the meat again and season everything again. Drain the rice and fold into the shredded meat.