Step 1: Preheat
Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish with nonstick spray.
Step 2: Make the Ranch Sauce
In a large bowl, mix together the softened cream cheese, sour cream, milk, and ranch dressing mix.
Add garlic powder, onion powder, salt, and pepper.
Stir until smooth and creamy.
Step 3: Combine the Casserole
Add the cooked chicken, pasta, and crumbled bacon (reserve some for topping).
Fold together until everything is coated evenly.
Transfer mixture to the prepared casserole dish.
Step 4: Add Cheese
Sprinkle cheddar and mozzarella evenly on top. Finish with reserved bacon.
Step 5: Bake
Bake for 25–30 minutes, until bubbly and golden.
Broil for 2–3 minutes for a crispier, browned top.
Remove from oven and rest 5 minutes before serving.
Step 6: Serve
Garnish with fresh parsley. Pair with salad, garlic bread, or roasted vegetables.