Place chicken in a single layer in baking dish. Pour dressing over top and brush to evenly coat. Place in oven for 30 minutes. Remove from oven and add cheese slices in a single layer. Sprinkle with parsley. Return to oven for 5 minutes more.
In a large pot over medium heat, add rice, broth and garlic powder. Cover with lid and cook for 17 minutes. Remove from heat and stir in broccoli quickly. Replace lid and let sit until chicken in ready to be served.
Add a portion of the broccoli rice mixture to a shallow plate. Then add a chicken breast on top. Ladle sauce over top.