A delicious and easy-to-make casserole featuring tender chicken, vibrant broccoli, and a creamy, cheesy sauce.
Preheat your oven to 350°F (175°C).
Preheating ensures even cooking from the start.
Cut the chicken into bite-sized pieces and steam the broccoli until tender-crisp.
Steaming the broccoli keeps its vibrant color and nutrients intact.
In a mixing bowl, combine the mayonnaise, sour cream, garlic powder, and onion powder to make the sauce.
Whisking the sauce well ensures a smooth and even mixture.
Layer the chicken and broccoli in a 9x13-inch baking dish, then pour the sauce evenly over the top.
Spread the sauce evenly to cover all the ingredients for consistent flavor.
Sprinkle the breadcrumbs and parmesan cheese over the casserole.
For a golden crust, lightly spray the topping with cooking oil.
Bake in the preheated oven for 30 minutes, or until the top is golden and bubbly.
Check the casserole halfway through to ensure even browning.
Let the casserole cool for a few minutes before serving.
Allowing it to rest helps the flavors meld together.