Add chicken broth and bay leaves. Bring to a boil and then reduce heat and simmer for 10 minutes.
Add orzo and chicken and simmer 15 minutes more or until pasta is cooked through. The orzo will soak up quite a bit of broth, resulting in a thick soup. If desired, add additional chicken broth to adjust the consistency to your liking.
Remove from heat and add lemon juice and parsley. Taste and adjust any seasonings as necessary.