2cupscooked chicken(rotisserie chicken works great)
Preheat oven to 350 degrees. In a medium-sized saucepan add the butter and onion and sauté over medium-high heat until almost tender. Add in the broccoli and sauté until they start to soften about 3-4 minutes.
In a large bowl combine the broccoli and onion, rice, cream of chicken soup, sour cream, milk, salt, pepper, garlic powder, and chicken.