HEAT dressing in large deep skillet on medium-high heat. Add chicken; cook 5 min. Add broth; bring to boil. Stir in rice; return to boil. Cover. Reduce heat to medium; simmer 5 min.
ADD cream cheese; cook until cream cheese is completely melted, stirring occasionally. Add spinach (skillet will be full); cover. Cook 2 min. or until spinach is wilted; stir gently. Cover; remove from heat.
LET stand 5 min. Stir in tomatoes; sprinkle with Parmesan cheese.