Spray casserole dish with non-stick spray and preheat oven to 375 degrees (F).
Cook rice in a pan according to directions.
In a large skillet, combine parsley, bell pepper, onion and chicken and cook over medium-high heat. Cook until chicken chicken is no longer pink inside (about 10 mins.) Set aside.
Drain chicken broth from pan and save to add in later.
Add spinach, artichoke hearts, rice, and parmesan cheese to chicken mixture in skillet. Combine well.
In a separate bowl, whisk together cream cheese, chicken broth, mayonnaise, sour cream, salt, pepper, oregano.
Put chicken mixture in casserole dish. Pour cream cheese mixture over top. Using 2 forks, mix the ingredients in the casserole dish together.
Bake at 375 degrees (F) for 30. mins. or until bubbly around edges. Remove from oven and let cool for 5-10 mins. Serve and enjoy!