Clean, wash and cut the beans into pieces. Peel and slice the onion. Heat the oil in a frying pan with lid. Fry the minced meat and onion for about 10 minutes while turning. Season with salt and cayenne pepper. Stir in tomato paste and sweat briefly.
Deglaze the mince with 750 ml water, bring to the boil and stir in the stock. Add rice and beans and cook covered for about 15 minutes. Wash and chop the mint. Add relish and mint to the pan and stir in. Season to taste with salt and pepper.