First, preheat your oven to 350 F or 180 C degrees.
Cook the broccoli in the microwave for 2-3 minutes and drain.
Place 2 cups of chicken broth in a saucepan over medium heat and bring to a boil.
Add the rice to the boiling broth and turn off the heat. Cover with a lid and let it sit for 5 minutes.
Stir in the butter and cheese into the rice and mix until combined.
In a large mixing bowl, combine the shredded chicken and broccoli and stir in the cheesy rice mixture to the mixing bowl.
Place the cream of onion and cream of chicken soup, milk, and heavy cream into the bowl and stir until combined.
If desired, transfer the whole mixture into a well-greased 9x13-inch baking dish and top with breadcrumbs. Bake for about 35-30 minutes until golden brown.
Serve and enjoy.