Preheat your oven to 350°F (175°C) and lightly grease a 9x13 inch baking dish with non-stick spray or butter.
In a large mixing bowl, combine the cream of chicken soup, sour cream, chicken broth, and the dry French onion soup mix. Whisk until smooth and well combined.
Add the cooked rice, shredded chicken, 1 cup of the shredded cheese, and 1/2 cup of the crispy fried onions to the bowl. Stir gently until all ingredients are evenly coated in the creamy sauce.
Transfer the mixture to the prepared baking dish, spreading it out into an even layer.
Bake uncovered in the preheated oven for 20 to 25 minutes, or until the casserole is hot and bubbling around the edges.
Remove the dish from the oven and sprinkle the remaining 1 cup of cheese and the remaining 1 cup of crispy fried onions over the top.
Return to the oven and bake for an additional 5 to 10 minutes, until the cheese is fully melted and the onion topping is golden brown.
Garnish with fresh chopped parsley and let the casserole rest for 5 minutes before serving to allow the sauce to set slightly.