Cover cabbage with water in Dutch oven; bring water to boil. Cook 2 1/2 minutes; drain well. Heat oven to 350 degrees. Melt 2 tablespoons margarine in saucepan over medium-low heat. Blend in flour and paprika. Gradually stir in milk; cook, stirring constantly, until mixture thickens and comes to a boil. Add cheese spread; stir until melted. Add cabbage. Pour into 12" x 7 1/2" baking dish. Toss croutons with remaining melted margarine. Sprinkle over cabbage mixture; cover. Bake 25 minutes. Uncover; continue baking 20 minutes or until croutons are toasted. Let stand 10 minutes before serving. Serves 8.