Cut tops off peppers and set aside. Remove the seeds and membrane of each pepper. In a saucepan, heat oil; cook onion, mushrooms and parsley until tender. Remove from heat. Combine cooked onion mixture with veal, rice, cheese, breadcrumb, egg and one quarter cup of the pasta sauce. Season with sea salt and pepper. Spread remaining pasta sauce in a large (3.5 litre) baking dish. Fill peppers with veal mixture and replace tops. Place peppers in prepared baking dish. Bake, covered, (with lid or tin foil) in preheated 350°F oven for 60 minutes or until peppers are tender and meat has cooked through. Serves 6. Serve peppers topped with sauce.