5 tablespoons olive oil3 large onions, chopped 2 cloves garlic, minced 2 tablespoons red pepper flakes1/4 cup tomato sauce 2 cups hot water 3 tablespoons chopped fresh parsleySalt to taste1/2 teaspoon black pepper2 teaspoons paprika 2 (19 ounce) cans fava beans1 Portuguese sausage (chourico) sliced