HEAT dressing in Dutch oven or large deep skillet on medium-high heat. Add chicken; cook 3 min., stirring occasionally. Stir in broth; bring to boil. Add rice; stir. Return to boil; cover. Simmer on medium heat 5 min.
ADD Neufchatel; cook 2 to 3 min. or until melted, stirring frequently. Add spinach. (Pan will be full.) Cook, covered, 1 min. or until spinach is wilted. Stir gently to mix in spinach.
REMOVE pan from heat. Let stand, covered, 5 min. Stir in tomatoes; top with Parmesan.