Preheat oven to 350 degrees F and lightly grease a 9x13" baking dish.
Rinse rice thoroughly in a fine mesh sieve.
Add broth, uncooked chicken breasts, broccoli, rice, half and half, seasoning salt, Italian seasoning, onion powder and black pepper to the baking dish. Stir to combine and place dots of butter over top.
Seal tightly with foil and bake for 40-50 minutes, until rice is al dente.
Remove foil and sprinkle with cheese. Return to oven to melt and serve.
