Dice the onion and fry in hot oil. Cut the chicken into small cubes and fry with them. Add the rice and stir. Wash the peppers, cut into strips and add to them. Add the chicken broth, fill up with water and cook covered for 15 minutes. Then add the peas and herb mixture and cook for another 5 minutes. Season with the clove of garlic, salt and pepper to taste. Finally stir in the sour cream.