Peel and halve the potatoes. Wash them, then fry them in oil for 10 minutes.

In a small saucepan, melt the butter and brown the onions for 3 minutes. Add the ground meat and partially cook it for 3 minutes, stirring constantly. Then add the salt and water and boil. Place the potatoes without the oil in a saucepan. Pour the meat preparation over the potatoes. Add the sliced green peppers and chopped tomatoes. Cover and cook 45 minutes on a low heat.