Get the cheese sauce bubbling: Sauté the butter until it melts. Cream of chicken and onion soup, Velveeta, milk, and heavy whipping cream should be added. Combine ingredients and mix until combined.
Whisk the components together: Toss the broccoli, rice, chicken, and cheese sauce together in a big bowl. Mix well by stirring.
Put the casserole together: Transfer the mixture to the baking dish that has been preheated.
Include a topping if desired: Toss in some Panko breadcrumbs.
Preheat oven to 350°F. If you want a bubbly, golden brown top, bake it for 25 to 30 minutes.
After a few minutes of cooling, serve.
