Preheat oven to 350 degrees F. In a large skillet heat oil over medium heat. Add the next three ingredients (through celery); cook 5 minutes, stirring occasionally. Add pork and sausage; cook 5 minutes more or until browned.
In a medium bowl mash half of the beans. Stir in remaining beans and the next four ingredients (through Italian seasoning). Stir into meat mixture. Transfer to a 2-quart square or rectangular baking dish.
Bake, covered, for 25 minutes or until pork is tender. Sprinkle with parsley. Season to taste.