Drain vegetables, reserving liquid. Combine the flour and soup mix in large skillet. Add water to reserved liquid to measure 3 cups; stir into mixture in skillet. Heat to boiling, stirring constantly. Boil and stir 1 minute. Stir in vegetables and beef. Cover; cook over low heat about 10 minutes or until it is heated through. Makes 4 servings, about 1 1/2 cups each.