Before cooking, prepare all the vegetables, cut the sweet peppers into half rings, tomatoes if they are not large, just cut in half. One medium onion is cut into half rings. If desired, you can cut a little chili pepper, it will give a pleasant aroma to the dish.
In a frying pan, heat a little sunflower oil and fry the sausages for three minutes on each side until a nice crust forms. Remove the finished sausages to a plate.