Add orzo and cook, stirring, for 1 minute. Pour in broth, bring to a simmer, cover, and cook for 10-12 minutes until orzo is al dente.
Turn off heat, add Boursin cheese and stir until melted into a creamy sauce. Return chicken and spinach, stir until spinach wilts. Serve garnished with parsley.
Notes
For a lighter version, use less cheese or chicken broth.