Step 1: Heat the oil in a pan. Add the chopped vegetables and sauté until tender. Take a pot, empty the beans together with the vegetables into it, put the sausages inside and cook for further 20 minutes on a low heat. Or, put it in an oven and bake it at a temperature of 180ºC/350ºF for 30 minutes. This dish is even better reheated the next day.