Boil the beans. Prepare roux chopped onions, tomato paste and red pepper. Salt it, and pour the beans to leave another 10 minutes to boil. Peppers soak in warm water. Fry the chopped leeks and add the rice, red pepper and 1 cup water. Let him almost to boil, add parsley and pepper. Stuff the peppers with rice and put them in the beans. Put the dish to boil 20 minutes. Finally, add the mint.