Saute onions in heated oil; remove to casserole. Roll veal in flour seasoned with salt and pepper; brown in oil. Add mushrooms and brown slightly. Arrange veal and mushrooms over onions.
Combine other ingredients; pour over meat. Cover; bake in moderate 350 degree oven for 1 1/4 hours or until veal is tender. Remove cover last 1/2 hour. Serve with baked potatoes, green peas, Perfection Salad and spumoni. 6 servings.