01 -
Preheat the oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish.
02 -
Cut chicken breasts into bite-sized pieces and season with Italian seasoning, salt, and pepper. Melt butter in a large pot over medium heat. Add chicken and cook until golden brown, about 5 minutes. Remove and set aside. Skip this step if using cooked rotisserie chicken.
03 -
In the same pot, combine chicken broth, olive oil, and rice. Bring to a boil, then reduce to a simmer. Cover tightly and cook for 6 minutes. Add broccoli, cover again, and cook for 9 minutes or until the rice is tender and the liquid is absorbed. If not fully cooked, simmer for 5 more minutes. Remove from heat and let rest, covered, for 10 minutes.
04 -
Stir in the cooked chicken, cream of chicken soup, milk, sour cream, optional seasonings, and half the cheddar cheese.
05 -
Transfer the mixture to the prepared baking dish. Sprinkle the remaining cheese on top. Cover with foil and bake for 15 minutes.
06 -
In a small bowl, mix crushed Ritz crackers with melted butter.
07 -
Uncover the casserole and sprinkle the cracker topping evenly over the surface. Bake uncovered for 10 more minutes until golden and bubbly.
08 -
Let the casserole rest for 5 minutes before serving.