Make a meatball batter from the minced meat, an egg, a diced onion (I sometimes grate the onion too), the breadcrumbs, 2 teaspoons of salt and a lot of pepper. If you like, you can add paprika powder or mustard or use your usual minced meat batter. Shape it into small dumplings. Cut the second onion and peppers into strips.
Melt some neutral oil or clarified butter in a high pan, fry the meatballs in it and remove them when they are done.