COOK pasta as directed on package.

MEANWHILE, place cream cheese in large skillet. Add milk; cook on medium-low heat until cream cheese is melted and mixture is well blended, stirring occasionally. Stir in 4 Tbsp. (1/4 cup) Parmesan and pepper. Add spinach; mix well. Drain pasta. Add to spinach mixture; mix lightly.

SPRINKLE with tomatoes and remaining Parmesan.