Preheat your oven to 375°F (190°C) and grease a baking dish.
Cook the pasta according to the package instructions until al dente. Drain and set aside.
In a large mixing bowl, combine the cooked chicken, crumbled bacon, ranch dressing, sour cream, and shredded cheeses. Season with salt and pepper to taste.
Add the cooked pasta to the bowl with the chicken and bacon mixture, tossing until everything is evenly coated.
Transfer the mixture to the prepared baking dish, spreading it out evenly.
Bake in the preheated oven for 20-25 minutes, or until the casserole is heated through and the cheese is melted and bubbly.
If desired, broil for an additional 2-3 minutes to achieve a golden brown crust on top.
Remove from the oven and let cool for a few minutes before serving.
Garnish with chopped green onions or fresh parsley, if desired.
Serve the Chicken Bacon Ranch Casserole hot and enjoy every flavorful bite!
Recipe Notes and Variations
Feel free to customize this casserole with your favorite add-ins, such as diced tomatoes, sautéed mushrooms, or chopped spinach.
For a lighter version, you can use Greek yogurt in place of sour cream.
Make it gluten-free by using gluten-free pasta and ensuring your ranch dressing is gluten-free as well.