Wash the beans and cut into small pieces. Halve the tomato and grate it finely. Cut the onion into small cubes and sauté in oil until translucent. Add ground beef and sauté the chopped beans. Now add the grated tomato, season with salt, paprika and pepper and season to taste. Add the tomato paste and stir well. Add a pinch of sugar and enough water to cover the beans. Let it simmer until the beans are cooked through.