Pour in chicken broth and heavy cream, simmer 3-5 minutes until slightly thickened. Stir in rice and 3 cups chicken broth, bring to boil, then reduce heat, cover, and simmer 15-20 minutes until rice is tender.
Return chicken to skillet, sprinkle with Parmesan, cover 2-3 minutes until cheese melts. Add spinach, let wilt, then garnish with fresh herbs if desired.
Notes
Ensure to adjust seasoning to taste and serve hot for best flavor.