Preheat oven to 350 degrees. Grease a 9x13 inch pan. Set aside.
In a medium saucepan, boil 2 cups of water (add a little salt). Once water is boiling, add the rice, cover, and set aside for 5 minutes.
In a large bowl, combine the cream of chicken soup, sour cream, onion, garlic powder, chicken, ham, milk, 1 cup of cheese, rice, and broccoli. Pour into the greased pan and spread evenly. Top with the remaining 1/2 cup of cheese.
Bake for 20-25 minutes until the cheese is melted and bubbly.
Keyword Broccoli, Casserole, Cheese, Chicken, Cream of Chicken, easy dinner, Ham, Holiday Leftovers, Rice, Sour Cream, Turkey