Preheat the oven to 350 degrees.
Bring chicken stock or water to a boil in a pot over high heat.
In a large bowl, coat chicken with olive oil and seasoning.
Spray a 9x13 deep dish with non-stick cooking spray. Add packaged rice and hot chicken stock, then stir.
Place the seasoned chicken on top and scatter sliced butter over it.
Cover with foil and bake for 30 minutes. Remove foil and bake for an additional 20 minutes.
Ensure the chicken reaches 165 degrees (or 170 degrees for dark meat).
Remove from the oven and let it cool for 5 minutes before serving.