This chicken broccoli casserole combines tender chicken, broccoli florets, creamy sauce, rice, and melted cheddar cheese into a cozy one-pan dinner that feels comforting, simple, and family-friendly.
Preheat the oven to 375°F and grease a 9x13-inch baking dish.
If using fresh broccoli, blanch it for 2 minutes and drain well. If using frozen broccoli, thaw and squeeze out excess moisture.
In a large mixing bowl, whisk together sour cream, cream of chicken soup, milk, garlic powder, onion powder, salt, and black pepper.
Add the cooked chicken, broccoli florets, cooked rice, and shredded cheddar cheese to the bowl.
Stir until all ingredients are evenly coated with the creamy sauce.
Spread the mixture evenly into the prepared baking dish.
In a small bowl, combine crushed crackers or panko breadcrumbs with melted butter.
Sprinkle the topping evenly over the casserole.
Bake for 25 to 30 minutes until bubbly around the edges and golden brown on top.
Let the casserole rest for 5 minutes before serving warm.
Notes
Drain broccoli well before mixing to avoid watery casserole filling. Rotisserie chicken works perfectly for quick prep, and frozen broccoli can be used if thawed and squeezed dry. Let the casserole rest for 5 minutes after baking so the filling can settle before serving.