Wash the chicken, dab dry and rub with salt, pepper and paprika. Place on the fat pan of the oven and roast in the preheated oven (electric: 200 °C/ gas: level 3) for about 1 hour.
Pour the escaping gravy over the meat in between. Peel onion and garlic and dice finely. Heat the oil in a pot and fry them both. Add rice and fry briefly.
Coarsely chop the tomatoes in the tin and add with the juice. Add the stock, bring to the boil, cover and let everything swell over a low heat for about 30 minutes. Add peas 5 minutes before the end of cooking time.
Season everything with salt, paprika and cayenne pepper. Spread the rice on a plate and arrange the chicken on top. Garnish with parsley.