Prepare artichokes for cooking as directed; set aside. Combine bread crumbs, Italian dressing, 1/4 cup onion, cheese and parsley in medium bowl. Stuff bread crumb mixture between artichoke leaves.
Bring broth and remaining 1/4 cup onion to a boil in large nonaluminum saucepot. Add artichokes and simmer covered, basting occasionally, 40 minutes or until leaves are tender and pull out easily.