Clean the beans, wash them. Wash potatoes and cook in water for about 5 minutes. Add the beans and continue cooking for about 10 minutes. Drain both.
Roast the pine nuts in a pan without fat, take them out. Cut the tomatoes into small pieces. Wash thyme, chop finely. Chop pine nuts. Knead minced pine nuts, breadcrumbs, egg, thyme, pine nuts and tomatoes. Season with salt and pepper. Form approx. 8 meatballs from the mixture. Clean, wash and cut the peppers into pieces. Peel onion and cut into strips.
Heat the oil in a large pan with a lid. Fry the meatballs in it for about 4 minutes on each side, take them out.
Fry the bell pepper and onion in hot frying fat for about 5 minutes. Briefly sauté the tomato paste. Deglaze with 250 ml water. Bring to the boil. Add stock, potatoes and beans and braise covered for about 5 minutes. Put the meatballs on top and braise covered for about 5 minutes. Serve everything.