Saute sausage 15 minutes, remove to casserole. Add oil to sausage drippings, brown beef in oil, 15 minutes. Remove to casserole. Saute onion, add to casserole. Saute mushrooms with sauerkraut and wine. Add tomato sauce, soy sauce, caraway seeds and vegetable seasoning. Add this to casserole also, mixing well. Cover and bake at 375 degrees for 2 to 2 1/2 hours. Stir casserole every 30 minutes.