Garlic Parmesan Chicken Pasta Bake is the ultimate comfort food casserole — creamy, cheesy, and packed with tender chicken and perfectly cooked pasta. This cozy weeknight delight combines rich Alfredo sauce, bold garlic Parmesan flavor, and melty mozzarella for a baked pasta dish the whole family will love. It’s hearty, satisfying, and perfect for feeding a crowd or meal prepping for the week ahead.
Why You’ll Love This Recipe
You’ll love this Garlic Parmesan Chicken Pasta Bake because it’s incredibly easy to assemble using simple, convenient ingredients. The creamy sauces coat every bite of pasta, while the combination of mozzarella and Parmesan creates a gooey, golden topping. It’s a great way to use leftover chicken, and it reheats beautifully, making it ideal for busy schedules.
Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
Rotini pasta, cooked and drained (reserve 1 cup pasta water)
Cooked chicken, diced or shredded
Alfredo sauce
Garlic Parmesan sauce
Shredded mozzarella cheese
Grated Parmesan cheese
Salt
Black pepper
Fresh parsley, chopped (optional garnish)
Directions
Preheat your oven to 375°F. Lightly grease a 9×13-inch baking dish with cooking spray or butter.
In a large mixing bowl, combine the cooked rotini pasta, diced or shredded chicken, Alfredo sauce, garlic Parmesan sauce, half of the mozzarella cheese, and half of the grated Parmesan cheese. Season with salt and black pepper to taste. Mix until everything is evenly coated. If the mixture seems too thick, stir in about ½ cup of the reserved pasta cooking water to loosen the sauce.
Transfer the pasta mixture into the prepared baking dish and spread it evenly.
Sprinkle the remaining mozzarella and Parmesan cheese evenly over the top.
Cover the dish with aluminum foil and bake for 20–25 minutes, or until the cheese is melted and the casserole is hot and bubbly.
For a golden, slightly crispy top, remove the foil and broil for 2–3 minutes, watching carefully to prevent burning.
Allow the casserole to cool for about 5 minutes before serving. Garnish with freshly chopped parsley if desired, and serve warm.
Servings and Timing
This recipe serves 8 people.
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Calories: Approximately 421 kcal per serving.
Variations
Add steamed broccoli or spinach for extra greens and color.
Swap rotini for penne, ziti, or rigatoni if preferred.
Use rotisserie chicken for convenience and added flavor.
Add cooked bacon bits for a smoky twist.
Sprinkle Italian seasoning or red pepper flakes for added depth and mild heat.
Storage/Reheating
Store leftovers in an airtight container in the refrigerator for up to 4 days.
To reheat, warm individual portions in the microwave in 30-second intervals until heated through. For larger portions, cover with foil and reheat in a 350°F oven until warmed. Add a splash of milk or reserved pasta water before reheating to keep the pasta creamy.
This casserole can also be frozen for up to 2 months. Thaw overnight in the refrigerator before reheating.
FAQs
Can I make this ahead of time?
Yes! Assemble the casserole, cover tightly, and refrigerate for up to 24 hours before baking.
What type of chicken works best?
Cooked shredded or diced chicken breast works great, but chicken thighs add extra juiciness and flavor.
Can I make this dish lighter?
You can use light Alfredo sauce, reduced-fat cheese, or substitute part of the sauce with Greek yogurt for a lighter version.
How do I keep the pasta from drying out?
Reserve some pasta water and add it to the sauce mixture before baking. Covering with foil during baking also helps retain moisture.
Can I use homemade Alfredo sauce?
Absolutely! Homemade Alfredo sauce will make the dish even richer and more flavorful.
Conclusion
Garlic Parmesan Chicken Pasta Bake is creamy, cheesy comfort food at its finest. With tender chicken, flavorful garlic Parmesan sauce, and a perfectly melted cheese topping, this easy baked pasta is guaranteed to become a family favorite. Whether you’re serving it for a weeknight dinner or bringing it to a potluck, this hearty casserole always delivers warmth and satisfaction in every bite.