Cut steak in 6 serving pieces. Mix flour, salt and pepper. Dredge meat in seasoned flour. Combine bread crumbs, Parmesan cheese and basil leaves. Dip meat pieces in egg and water mixture, then dredge in crumb mixture, coating evenly. Brown meat in oil. Place in baking dish. Combine tomato sauce, garlic, sugar and oregano. Pour over meat. Cover with foil and cook in 350° oven for 1 hour and 10 minutes, or until tender. Sprinkle mozzarella over meat. Sprinkle added oregano, if desired. Bake additional 3 to 5 minutes until cheese melts. Serve sauce with meat.