Pour the beans into a sieve, rinse briefly and drain. Clean the savoy cabbage, wash it and cut out the stalk. Cut cabbage into pieces. Peel and wash the carrots, cut them in half lengthwise and cut them into slices. Peel, wash and chop celery. Peel and halve onion and cut into strips.
Heat the oil in a large pot. Sauté onion, celery, savoy cabbage and carrots in it. Stir in the tomato paste and sauté briefly. Add 1 l water and tomatoes in pieces, bring to the boil. Stir in stock and simmer covered for about 15 minutes.
Stir the rice and beans into the minestrone and continue cooking for about 5 minutes. Wash herbs, shake dry, pluck off leaves and chop finely. Season stew with salt, pepper and chilli. Stir in the herbs. Arrange minestrone.