If you’re on the hunt for a comforting, creamy dish that brings together the rich flavors of garlic, chicken, and cheese, then Garlic Butter Chicken Alfredo Casserole is your answer! This dish is perfect for weeknight dinners or cozy gatherings, and it comes together effortlessly with just a few key ingredients. With tender chicken, al dente fettuccine, and a decadent sauce, this casserole is sure to become a family favorite. Let’s dive into the deliciousness of this recipe!
Why You’ll Love This Recipe

The Garlic Butter Chicken Alfredo Casserole is loved for many reasons. Firstly, it’s incredibly easy to prepare, making it a perfect choice for busy weeknights. Secondly, the combination of garlic and butter creates a luscious sauce that envelops the chicken and pasta, making every bite a delight. Thirdly, it’s a one-dish meal, meaning less clean-up for you! And finally, it’s customizable—feel free to add your favorite vegetables or swap out the cheeses. This dish is not just a meal; it’s a comforting hug on a plate.
What Goes In

To make this delightful Garlic Butter Chicken Alfredo Casserole, gather the following ingredients:
- 1 pound chicken breast, diced
- 8 ounces fettuccine pasta
- 1 cup heavy cream
- 1 cup chicken broth
- 4 tablespoons unsalted butter
- 4 cloves garlic, minced
- 1 cup grated Parmesan cheese
- 1 cup shredded mozzarella cheese
- Salt and pepper to taste
- 1 teaspoon Italian seasoning
- Optional: chopped parsley for garnish
Essential Tools for Success

Before you get started, make sure you have these essential tools on hand:
- Large pot: For boiling the fettuccine pasta.
- Skillet: For cooking the chicken and making the sauce.
- Baking dish: To assemble and bake the casserole.
- Wooden spoon: For stirring the ingredients together.
- Measuring cups and spoons: For accurate ingredient measurement.
Garlic Butter Chicken Alfredo Casserole Cooking Guide
Now that you have your ingredients and tools ready, let’s get cooking!
Step 1: Cook the Pasta
In a large pot, bring salted water to a boil and cook the fettuccine according to package instructions until al dente. Drain and set aside.
Step 2: Sauté the Chicken
In a large skillet, melt 2 tablespoons of unsalted butter over medium heat. Add the diced chicken, season with salt, pepper, and Italian seasoning, and cook until golden brown and cooked through, about 5-7 minutes. Remove the chicken from the skillet and set aside.
Step 3: Prepare the Garlic Butter Sauce
In the same skillet, melt the remaining 2 tablespoons of butter. Add the minced garlic and sauté for about 1 minute until fragrant, being careful not to burn it.
Step 4: Create the Creamy Sauce
Pour in the heavy cream and chicken broth, stirring to combine. Bring the mixture to a gentle simmer, then add the grated Parmesan cheese. Stir until the cheese melts and the sauce thickens slightly.
Step 5: Combine Everything
Return the cooked chicken to the skillet, adding the drained fettuccine to the sauce. Gently toss everything together until the pasta and chicken are well coated in the creamy sauce.
Step 6: Assemble the Casserole
Preheat your oven to 350°F (175°C). Transfer the chicken and pasta mixture into a greased baking dish. Top with shredded mozzarella cheese, ensuring it’s evenly spread.
Step 7: Bake to Perfection
Bake in the preheated oven for about 20-25 minutes, or until the cheese is bubbly and golden.
Step 8: Garnish and Serve
Once out of the oven, let it cool for a few minutes before garnishing with chopped parsley, if desired. Serve warm and enjoy your delicious Garlic Butter Chicken Alfredo Casserole!
Substitutions by Category
If you’re looking to make some adjustments, here are a few substitutions you can consider:
- Pasta: Swap fettuccine for penne or rigatoni, depending on your preference.
- Cheese: Use Gruyère or cheddar cheese for a different flavor profile.
- Protein: Substitute chicken with shrimp or even a plant-based protein for a vegetarian version.
- Vegetables: Add spinach, broccoli, or mushrooms for extra nutrition and flavor.
Behind-the-Scenes Notes
- This casserole is a great make-ahead option. You can prepare it a day in advance and pop it in the oven when you’re ready to eat.
- For an extra garlicky flavor, feel free to add more minced garlic to the sauce.
- If you prefer a lighter version, consider using half-and-half instead of heavy cream.
- Don’t hesitate to experiment with herbs; fresh basil or thyme can elevate the dish even more.
How to Store & Reheat
The Garlic Butter Chicken Alfredo Casserole can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, simply place it in the oven at 350°F (175°C) until warmed through, or microwave individual portions until heated. You can add a splash of chicken broth or cream when reheating to bring back that creamy texture!
Common Qs About Garlic Butter Chicken Alfredo Casserole
Can I freeze this casserole?
Yes! You can freeze the assembled casserole before baking. Just cover it tightly with foil or plastic wrap. When you’re ready to bake, thaw it overnight in the refrigerator and then bake as directed.
How can I make this dish spicier?
If you enjoy a bit of heat, consider adding red pepper flakes to the sauce or incorporating diced jalapeños with the chicken.
What can I serve with this casserole?
This casserole pairs well with a simple green salad or garlic bread to soak up that delicious creamy sauce!
Is this dish kid-friendly?
Absolutely! The creamy texture and cheesy flavors make it a hit with kids and adults alike. You can even add in some hidden veggies to sneak in extra nutrition!
Next Up in Your Queue
- Honey Butter Cornflake Crunch Cookies for a sweet treat after dinner.
- Blueberry Cheesecake French Toast Bake for a delightful breakfast option.
The Takeaway
The Garlic Butter Chicken Alfredo Casserole is more than just a meal; it’s a slice of comfort that brings everyone together around the table. With its creamy sauce, tender chicken, and cheesy goodness, it’s bound to be a hit in your home. Perfect for families and gatherings alike, this dish is sure to create lasting memories with every bite. So roll up your sleeves, gather your ingredients, and let’s make this delectable casserole today!
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Garlic Butter Chicken Alfredo Casserole
Ingredients
For the Casserole:
- 1 pound chicken breast diced
- 8 ounces fettuccine pasta
- 1 cup heavy cream
- 1 cup chicken broth
- 4 tablespoons unsalted butter
- 4 cloves garlic minced
- 1 cup grated Parmesan cheese
- 1 cup shredded mozzarella cheese
- Salt and pepper to taste
- 1 teaspoon Italian seasoning
- Optional chopped parsley for garnish
Instructions
Cooking Instructions:
- Step 1: In a large pot, bring salted water to a boil and cook the fettuccine according to package instructions until al dente. Drain and set aside.
- Step 2: In a large skillet, melt 2 tablespoons of unsalted butter over medium heat. Add the diced chicken, season with salt, pepper, and Italian seasoning, and cook until golden brown and cooked through, about 5-7 minutes. Remove the chicken from the skillet and set aside.
- Step 3: In the same skillet, melt the remaining 2 tablespoons of butter. Add the minced garlic and sauté for about 1 minute until fragrant, being careful not to burn it.
- Step 4: Pour in the heavy cream and chicken broth, stirring to combine. Bring the mixture to a gentle simmer, then add the grated Parmesan cheese. Stir until the cheese melts and the sauce thickens slightly.
- Step 5: Return the cooked chicken to the skillet, adding the drained fettuccine to the sauce. Gently toss everything together until the pasta and chicken are well coated in the creamy sauce.
- Step 6: Preheat your oven to 350°F (175°C). Transfer the chicken and pasta mixture into a greased baking dish. Top with shredded mozzarella cheese, ensuring it's evenly spread.
- Step 7: Bake in the preheated oven for about 20-25 minutes, or until the cheese is bubbly and golden.
- Step 8: Once out of the oven, let it cool for a few minutes before garnishing with chopped parsley, if desired. Serve warm and enjoy your delicious Garlic Butter Chicken Alfredo Casserole!
Equipment
- Large pot
- Skillet
- Baking Dish
- Wooden Spoon
- Measuring cups and spoons
Notes
- This casserole is a great make-ahead option. You can prepare it a day in advance and pop it in the oven when you're ready to eat.
- For an extra garlicky flavor, feel free to add more minced garlic to the sauce.
- If you prefer a lighter version, consider using half-and-half instead of heavy cream.
