Preheat your oven to 350ºF (175ºC). This is crucial for achieving that perfectly golden and bubbly top. While the oven heats, get your baking dish ready.
Lightly spray a 9×13-inch pan with cooking spray. This ensures that nothing sticks and makes cleanup a breeze.
Evenly spread the chopped cooked chicken across the bottom of the prepared dish. It’s the foundation of your casserole, so make sure it’s evenly distributed.
Sprinkle French fried onions and shredded cheddar cheese over the chicken layer. This adds an immediate layer of flavor and texture!
In a medium bowl, stir together the cream of chicken soup, onion powder, garlic powder, and sour cream French onion dip. Make sure to season with salt and black pepper to taste. This mixture will be the creamy bind that holds everything together.
Spread the soup mixture evenly over the chicken layer. Look for an even coating that covers all the chicken, ensuring every bite is flavorful.
Add another layer of French fried onions on top of the soup mixture for that extra crunch. You can never have too much crunch!
Sprinkle the uncooked stuffing mix evenly over the soup mixture. If your stuffing comes with an herb packet, make sure to add that on top as well.
Mix the chicken broth and melted butter together, then pour this mixture evenly over the casserole. This will help keep everything moist as it bakes.
Bake the casserole in the preheated oven for 30 minutes. You’ll know it’s done when the top is golden brown and bubbly. Your kitchen will be filled with amazing aromas!