This creamy, cheesy Chicken Bacon Ranch Pasta Casserole is made with tender rotini, crispy bacon, and sharp cheddar, ready in 40 minutes. The golden cheese forms a beautiful crust that bubbles at the edges of the baking dish right out of the oven. I love making this on busy weeknights when everyone needs a comforting meal.
Why This Classic Works
I used to struggle with dry casseroles that absorbed all the sauce while baking. After a few attempts, I learned that tossing the hot pasta in a little extra milk before adding the ranch mixture keeps everything incredibly creamy.
Baking it uncovered at the end guarantees you get those crispy, deeply savory bacon pieces on top instead of a soggy mess. It is a simple adjustment that completely changes the final texture of the dish.
Chicken Bacon Ranch Pasta Casserole Ingredients
- 16 oz (450g) penne or rotini pasta
- 2 cups cooked chicken breast, shredded
- 8 slices bacon, cooked and crumbled
- 1 cup ranch dressing
- 1/2 cup sour cream
- 1/2 cup whole milk
- 2 cups sharp cheddar cheese, shredded
- 1 cup mozzarella cheese, shredded
- 1 tsp garlic powder
- 1/2 tsp black pepper

How To Make Chicken Bacon Ranch Pasta Casserole
- Boil the Pasta: Cook the pasta in salted water according to package instructions until al dente, then drain well.
- Mix the Sauce: In a large bowl, whisk together the ranch dressing, sour cream, milk, garlic powder, and black pepper until smooth.
- Combine Ingredients: Fold the cooked pasta, shredded chicken, half of the crumbled bacon, and half of the cheeses into the sauce mixture.
- Assemble the Casserole: Transfer the mixture to a greased 9×13-inch baking dish and spread it in an even layer.
- Top and Bake: Sprinkle the remaining cheese and bacon evenly over the top, then bake at 375°F (190°C) for 20 minutes until bubbly.


Recipe Tips
- Cook pasta al dente: The noodles will continue cooking in the oven, so slightly firm pasta prevents a mushy texture.
- Grate your own cheese: Pre-shredded cheese contains anti-caking agents that stop it from melting smoothly into the sauce.
- Use rotisserie chicken: Store-bought roasted chicken saves prep time and adds an extra layer of savory flavor.
What To Serve With Pasta Casserole
A crisp green salad cuts through the richness of the cheese and ranch dressing perfectly. Roasted broccoli or buttery garlic bread are also great additions to round out the meal.

How To Store
Keep leftover casserole in an airtight container in the fridge for up to four days. You can freeze the baked or unbaked casserole for up to three months, thawing overnight before reheating.
FAQs
Can I use a different type of pasta?
Yes, any short pasta like macaroni, farfalle, or ziti works well to hold the creamy sauce.
Is it possible to make this ahead of time?
Assemble the entire dish, cover it tightly, and keep it in the fridge for up to 24 hours before baking. You may need to add 5 minutes to the baking time if cooking straight from the fridge.
How do I reheat leftovers?
Microwave individual portions for one minute, or reheat the covered baking dish in the oven at 350°F until warmed through.
Nutrition
- Calories: 580 kcal
- Total Fat: 32g
- Saturated Fat: 14g
- Cholesterol: 110mg
- Sodium: 890mg
- Total Carbohydrate: 45g
- Protein: 30g
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Chicken Bacon Ranch Pasta Casserole
8
servings15
minutes25
minutes40
minutesCreamy, cheesy Chicken Bacon Ranch Pasta Casserole loaded with tender chicken, crispy bacon, and sharp cheddar is ready in 40 minutes. This comforting dinner bake is a simple crowd-pleaser for busy weeknights.
Ingredients
16 oz (450g) penne or rotini pasta
2 cups cooked chicken breast, shredded
8 slices bacon, cooked and crumbled
1 cup ranch dressing
1/2 cup sour cream
1/2 cup whole milk
2 cups sharp cheddar cheese, shredded
1 cup mozzarella cheese, shredded
1 tsp garlic powder
1/2 tsp black pepper
Directions
- Boil the Pasta: Cook the pasta in salted water according to package instructions until al dente, then drain well.
- Mix the Sauce: In a large bowl, whisk together the ranch dressing, sour cream, milk, garlic powder, and black pepper until smooth.
- Combine Ingredients: Fold the cooked pasta, shredded chicken, half of the crumbled bacon, and half of the cheeses into the sauce mixture.
- Assemble the Casserole: Transfer the mixture to a greased 9×13-inch baking dish and spread it in an even layer.
- Top and Bake: Sprinkle the remaining cheese and bacon evenly over the top, then bake at 375°F (190°C) for 20 minutes until bubbly.
