For meat balls, combine all ingredients thoroughly. Shape to form 24 meat balls. Brown in small amount of shortening in large skillet.
For sauce, combine soup, water, mushrooms with liquid and tomato paste. Pour over browned meat balls. Cover and simmer about 30 minutes. Combine flour with 2 tablespoons cold water; add to sauce; blend well. Simmer bout 5 minutes or until thickened. Just before serving, stir in sour cream. Serve over hot buttered rice.
permission from The Quaker Oats Company Electronic format courtesy of Karen Mintzias