COOK pasta as directed on package, omitting salt.
MEANWHILE, heat oil in large skillet on medium heat. Add garlic; cook and stir 1 min. Stir in tomatoes; cook 3 min. or until heated through, stirring frequently. Add cream cheese and lemon juice; cook and stir 3 to 5 min. or until cream cheese is melted and mixture is well blended.
PLACE spinach in large bowl. Drain pasta, reserving 1/3 cup cooking water. Add pasta, reserved water, tomato mixture and 3 Tbsp. Parmesan to spinach; mix lightly. Serve topped with remaining Parmesan.