Cook bow tie pasta as directed on pkg. Drain, rinse with hot water. In large skillet, cook cabbage & onions in 4 tbsp of margarine for about 15 minutes or until lightly browned, stirring occassionally. Add pasta & remaining 2 tbsp. margarine; mix well. Place kielbasa on top of mixture. Cover; cook over low heat about 15-20 minutes or until kielbasa is hot & flavors have blended.