Beansa soak for 1 night in water. After washed, poured 1 liter of fresh water, add salt and boiled until soft. In a pan with sunflower oil fry the chopped bacon and meat, finely chopped onion, garlic, celery and carrots. Add the beans, along with the water, tomato and vinegar. Dish boil on medium heat until soft products. Season with bay leaf, black pepper and oregano. To the soup is served with slices of baked feta cheese.