1Preheat oven to 400`F.
In a large bowl, whisk together sour cream, chicken broth, dijon musterd and black pepper until smooth.
Add rice, chicken, ham, Swiss cheese and frozen peas. Stir to combine.
Pour mixture into 13x9 baking dish and spread evenly.
In a small bowl mix together corn flakes, pamensen cheese and melted butter.
Sprinkle evenly over top of casserole.
Bake uncovered on center oven rake for 25 minutes, until heated through and topping is golden brown.