Costco’s Chicken Alfredo is a beloved dish, offering a delicious blend of tender chicken, rich Alfredo sauce, and perfectly cooked pasta. Ideal for busy home cooks, this meal is quick, satisfying, and sure to please everyone.
Ingredients
Key ingredients include pre-cooked Costco rotisserie chicken, fettuccine pasta, Alfredo sauce, Parmesan cheese, and seasonings. Optional additions like garlic, butter, and parsley can enhance flavor. These components combine for a hearty, satisfying meal.
Costco-Specific Ingredients
Costco offers convenient, high-quality ingredients that make preparing Chicken Alfredo effortless. Start with Costco’s famous rotisserie chicken, which is pre-cooked and ready to shred. Pair it with Kirkland Signature Alfredo sauce, available in large jars, ensuring ample sauce for the dish. For pasta, Costco’s fettuccine or penne options are perfect. Additionally, grab a bag of shredded mozzarella or grated Parmesan cheese to add extra flavor. Optional items like fresh parsley, garlic, and butter can also be found in Costco’s aisles. These ingredients are pre-packaged in generous portions, making meal prep efficient. The rotisserie chicken, weighing about 1.5 kilograms, is a cost-effective and time-saving base for the recipe. With these Costco-specific items, you can create a hearty, satisfying meal without the hassle of multiple store trips. The combination of these ingredients ensures a rich, creamy, and flavorful Chicken Alfredo dish that your family will love.
Optional Additions for Customization

While Costco’s Chicken Alfredo is delicious on its own, you can elevate the dish with a few optional additions. For extra creaminess, mix in some heavy cream or shredded mozzarella cheese. Add a sprinkle of grated Parmesan for a burst of flavor. Garlic lovers can sauté minced garlic before adding the Alfredo sauce for an aromatic twist. A pat of butter can enhance the richness of the sauce. For freshness, garnish with chopped parsley or basil. If you prefer a bit of spice, red pepper flakes can add a subtle kick. Additionally, consider adding cooked shrimp, bacon, or diced vegetables like spinach or bell peppers to make the dish more substantial. These customizations allow you to tailor the recipe to your taste preferences while maintaining the convenience of using Costco ingredients. Experiment with these additions to create a personalized version of Chicken Alfredo that suits your family’s palate.

Step-by-Step Instructions
Season chicken breasts with salt and pepper, then cook in a skillet until done. Prepare pasta according to package instructions. Combine cooked chicken, pasta, and Alfredo sauce in a large skillet. Heat through and serve hot.
Preparing the Ingredients
To prepare your Costco Chicken Alfredo, start by gathering all necessary ingredients. Shred the pre-cooked rotisserie chicken, discarding the skin and bones. Cook the fettuccine pasta according to package instructions until al dente, then set aside. Open the jar of Alfredo sauce and ensure it’s ready for mixing. Grate Parmesan cheese for an extra burst of flavor. If using optional additions, mince garlic, chop fresh parsley, or prepare any additional proteins like cooked bacon or diced ham. For customization, have heavy cream or milk on hand to adjust the sauce’s consistency. Season the shredded chicken with salt and pepper to enhance its flavor. Once all components are prepped, you’re ready to combine them in the next step. Proper preparation ensures a smooth and efficient cooking process, allowing you to enjoy a delicious, homemade meal with minimal effort.
Cooking the Pasta
Cooking the pasta is a crucial step in preparing Costco Chicken Alfredo. Start by filling a large pot with water and bringing it to a boil. Add a generous amount of salt to season the pasta as it cooks. Once boiling, carefully pour in the fettuccine noodles, ensuring they are fully submerged. Stir gently to prevent tangling. Cook the pasta according to the package instructions, typically 8-10 minutes, or until it reaches an al dente texture. Avoid overcooking, as the pasta will continue to soften when combined with the sauce. While the pasta cooks, prepare a colander for draining. Once done, drain the noodles thoroughly and set them aside. For an extra creamy dish, reserve 1 cup of pasta water before draining, as it can be used to adjust the sauce’s consistency later. Properly cooked pasta ensures a delightful texture in your final dish, making it a key component of a satisfying meal.
Combining All Elements
Once the pasta and chicken are prepared, it’s time to bring everything together. In a large skillet or saucepan, combine the shredded or sliced pre-cooked chicken with the Alfredo sauce. Stir over low-medium heat until the chicken is evenly coated and the sauce is warmed through. Add the cooked fettuccine noodles to the skillet, tossing gently to ensure the pasta is well-coated with the creamy sauce. If the sauce seems too thick, add a splash of the reserved pasta water to achieve the desired consistency. For extra richness, stir in a tablespoon of heavy cream or additional grated Parmesan cheese. Continue to heat for 2-3 minutes, allowing the flavors to meld together. Taste and adjust the seasoning with salt and pepper if needed. Finally, garnish with chopped fresh parsley for a fresh, vibrant finish. Serve hot, ensuring everyone gets a generous portion of this comforting, indulgent dish.

Cooking Methods
Costco Chicken Alfredo can be prepared using two convenient methods: oven or stovetop. The oven method involves preheating to 350°F and baking for 40-50 minutes, while the stovetop method uses a skillet with olive oil for a quicker cook. Both ensure a delicious result.
Oven Method
For a hassle-free cooking experience, the oven method is a great way to prepare Costco Chicken Alfredo. Start by preheating your oven to 350°F (175°C). Butter a large casserole dish to prevent sticking. If using a rotisserie chicken, shred the meat and discard the skin and bones. Cook the pasta according to package instructions until al dente, then drain and set aside. In a large skillet, heat olive oil over medium heat. Add garlic and sauté until fragrant. Combine the cooked pasta, shredded chicken, and Alfredo sauce in the skillet, stirring until well coated. Transfer the mixture to the prepared casserole dish and top with grated Parmesan cheese. Cover with aluminum foil and bake for 25-30 minutes, then remove the foil and continue baking for an additional 10-15 minutes, or until the top is lightly golden. Let it rest for a few minutes before serving. This method ensures a creamy, evenly cooked dish with minimal effort.
Stovetop Method
The stovetop method offers a quick and efficient way to prepare Costco Chicken Alfredo. Start by seasoning chicken breasts with salt and pepper. Heat a large skillet over medium-high heat, add a drizzle of olive oil, and cook the chicken for 6-7 minutes per side until fully cooked. Remove the chicken from the skillet and set aside. In the same skillet, add minced garlic and sauté for 1-2 minutes until fragrant. Pour in the Alfredo sauce and bring it to a gentle simmer. Stir occasionally to prevent burning. While the sauce is heating, cook the fettuccine pasta according to package instructions until al dente, then drain. Slice the cooked chicken into strips or shred it, then add it to the skillet with the Alfredo sauce. Toss in the cooked pasta, combining everything evenly. Reduce heat to low and let it simmer for 5-10 minutes to allow the flavors to meld. Serve hot, garnished with grated Parmesan cheese and fresh parsley for added flavor and texture.

Tips and Tricks
- Season chicken breasts with salt and pepper before cooking for enhanced flavor.
- Use olive oil in a skillet over medium-high heat for even cooking.
- Cook chicken for 6-7 minutes per side until fully cooked.
- Simmer Alfredo sauce gently to avoid burning.
- Add Parmesan cheese for a richer, creamier texture.
Enhancing Flavor
To elevate the taste of your Costco Chicken Alfredo, consider adding fresh ingredients to the dish. Start by sautéing minced garlic in butter before incorporating the Alfredo sauce for a richer, deeper flavor profile. Heavy cream can be added to enhance the sauce’s creaminess, while grated Parmesan cheese provides a sharp, savory note. For an extra burst of freshness, sprinkle chopped parsley over the dish before serving. Additionally, seasoning the chicken with salt, pepper, and herbs like basil or thyme during cooking can add layers of flavor. If using a rotisserie chicken, shredding it and tossing it in the sauce ensures even distribution of flavors. Finally, simmering the sauce gently allows the flavors to meld together without burning, resulting in a smooth, velvety texture. These simple additions can transform a convenient meal into a gourmet experience, making your Costco Chicken Alfredo truly unforgettable.
Avoiding Common Mistakes
When preparing Costco Chicken Alfredo, there are a few common mistakes to avoid for the best results. Overcooking the pasta is a frequent error, as it can become mushy and unappetizing. Always cook the fettuccine al dente, as specified on the package, to maintain its texture. Another mistake is burning the garlic when sautéing it in butter, which can give the dish a bitter taste. Sauté garlic briefly and keep the heat moderate to prevent this. Additionally, using too much Alfredo sauce can make the dish overly soggy. Start with the recommended amount and add more if needed. Seasoning the chicken inadequately is another pitfall; ensure the chicken is well-seasoned with salt, pepper, and herbs before cooking. Lastly, avoid overheating the sauce, as it can separate and lose its creamy consistency. By being mindful of these potential errors, you can achieve a perfectly balanced and delicious Chicken Alfredo dish every time.
Nutritional Information
Costco Chicken Alfredo is a rich and satisfying dish, but it is important to be mindful of its nutritional content. A single serving typically contains approximately 450-500 calories, with a significant portion coming from fat due to the Alfredo sauce and cheese. The dish is high in protein, with about 35 grams per serving, primarily from the chicken and Parmesan cheese. It also contains around 25-30 grams of fat, with a notable amount of saturated fat. Carbohydrates make up about 30-35 grams per serving, mostly from the pasta and sauce. Sodium content is relatively high, often exceeding 800-900 mg per serving, due to the sauce and seasoning. While the dish provides essential nutrients like calcium from the cheese and iron from the chicken, it is calorie-dense and should be consumed in moderation. Balancing the meal with a side of vegetables or a salad can help round out its nutritional profile.
- Calories: ~450-500 per serving
- Protein: ~35 grams
- Fat: ~25-30 grams (including saturated fat)
- Carbohydrates: ~30-35 grams
- Sodium: ~800-900 mg
Serving Suggestions
Costco Chicken Alfredo is a hearty and flavorful dish that can be served in various ways to complement its rich and creamy texture. For a well-rounded meal, consider pairing it with a fresh green salad or roasted vegetables like broccoli or asparagus. Garlic bread is a classic accompaniment, perfect for sopping up the Alfredo sauce. If you prefer a lighter option, a side of steamed vegetables or sautéed spinach adds a nutritious touch. For added freshness, garnish the dish with chopped parsley or basil before serving. Additionally, a fruit salad or a simple side of sliced fruit provides a refreshing contrast to the savory flavors of the Alfredo. You can also serve it alongside a crusty baguette for a satisfying and filling meal. To cater to different dietary preferences, consider offering a side of grilled vegetables or a small Caesar salad. This versatile dish can be tailored to suit both casual family dinners and special occasions.
- Garlic bread for sopping up the sauce
- Fresh green salad or roasted vegetables
- Steamed broccoli or asparagus
- Sautéed spinach or sautéed mushrooms
- Fruit salad or sliced fresh fruit
- Crusty baguette or Italian bread

Variations
Elevate your Costco Chicken Alfredo with creative twists. Add proteins like shrimp or bacon, or modify the sauce with extra garlic or herbs. For a lighter version, substitute heavy cream with half-and-half or Greek yogurt. Experiment with different pasta shapes or add steamed vegetables for variety.

Adding Different Proteins
Modifying the Sauce
Alternative Pasta Options
Adding Different Proteins
Enhance your Costco Chicken Alfredo by incorporating various proteins for added flavor and texture. Shrimp is a popular choice—simply sauté peeled and deveined shrimp with garlic until pink and fully cooked, then toss with the Alfredo sauce. For a smoky twist, add crispy bacon bits or diced ham, which pair perfectly with the creamy sauce. If you prefer a vegetarian option, roasted or grilled portobello mushrooms can add a hearty, meaty texture. Another idea is to include cooked sausage, such as Italian sausage, for a spicy kick. These protein additions not only diversify the dish but also make it more satisfying for a variety of dietary preferences. Feel free to mix and match proteins to create a personalized version of the recipe. This flexibility allows you to cater to different tastes while maintaining the dish’s rich and indulgent character.
Modifying the Sauce
Customizing the Alfredo sauce in your Costco Chicken Alfredo allows you to tailor the dish to your taste preferences. For a richer sauce, add an extra tablespoon of butter or a splash of heavy cream. If you prefer a lighter version, substitute some of the heavy cream with milk or Greek yogurt. To infuse fresh flavors, mix in chopped herbs like parsley, basil, or dill. For a spicy twist, add a pinch of red pepper flakes or a diced jalapeño. Another option is to incorporate grated Asiago or Romano cheese for a sharper, more complex flavor profile. Additionally, a squeeze of fresh lemon juice can brighten the sauce and balance its richness. These modifications not only enhance the sauce but also allow you to experiment with different flavor combinations. Whether you prefer it creamy, spicy, or tangy, the sauce can be adjusted to suit your culinary style. This versatility makes the dish adaptable to various palates and dietary preferences.
Alternative Pasta Options
While fettuccine is the traditional choice for Chicken Alfredo, you can experiment with other pasta shapes to suit your preferences. Penne, fusilli, or farfalle are excellent alternatives, as their textured surfaces hold onto the creamy sauce beautifully. For a lighter option, consider using spaghetti or linguine, which pair well with the rich Alfredo sauce. If you’re looking for a more rustic texture, pappardelle or rigatoni work wonderfully. Additionally, gluten-free pasta options like quinoa or rice-based varieties can be used to accommodate dietary restrictions. When substituting pasta, keep in mind that cooking times may vary, so refer to the package instructions for specific guidance. Regardless of the pasta you choose, ensure it’s cooked al dente to maintain its texture and prevent it from becoming mushy. This flexibility allows you to enjoy the dish with your favorite pasta, making it a versatile meal for any occasion. Experimenting with different shapes can also add variety to your meals while keeping the core flavors intact.

Storage and Reheating
Costco Chicken Alfredo can be stored in an airtight container in the fridge for up to 3 days or frozen for up to 2 months. Reheat gently in the microwave, oven, or on the stovetop, adding a splash of milk if needed to restore creaminess.
Refrigeration Tips
To maintain the freshness and quality of Costco Chicken Alfredo, proper refrigeration is essential. Once cooked, allow the dish to cool slightly before transferring it to an airtight, shallow container. This helps prevent the growth of bacteria and keeps the flavors intact. Store it in the refrigerator at a temperature of 40°F (4°C) or below within two hours of cooking. When refrigerated correctly, Chicken Alfredo can be safely stored for up to 3 days. For optimal texture, avoid deep containers, as they can cause the sauce to separate. If you plan to refrigerate individual portions, divide the dish into smaller, sealable containers for convenience. When reheating, ensure the dish reaches an internal temperature of 165°F (74°C) to maintain food safety. Adding a splash of milk or cream during reheating can help restore the sauce’s creaminess if it has thickened. Proper refrigeration ensures your Costco Chicken Alfredo remains delicious and safe to eat for several days.
Freezing Instructions
For long-term storage, freezing is an excellent option to preserve the quality of Costco Chicken Alfredo. Before freezing, ensure the dish has cooled completely to prevent the formation of ice crystals, which can affect texture. Transfer the cooled Chicken Alfredo to an airtight, freezer-safe container or heavy-duty freezer bag, making sure to press out as much air as possible before sealing. Label the container with the date and contents for easy identification. When stored properly, the dish can be frozen for up to 3 to 4 months without significant loss of flavor or texture.
When you’re ready to eat it, thaw the frozen Chicken Alfredo overnight in the refrigerator. For a quicker option, thaw it in the microwave or under cold running water, then reheat it on the stovetop or in the oven until warmed through. To restore creaminess, you can add a splash of milk or heavy cream during reheating. Freezing is a convenient way to enjoy Costco Chicken Alfredo at a later time while maintaining its delicious taste and texture.
Conclusion
Costco Chicken Alfredo is a convenient and flavorful meal solution that combines tender chicken, rich Alfredo sauce, and perfectly cooked pasta. Its ease of preparation makes it a great option for busy home cooks looking to serve a satisfying meal without spending hours in the kitchen. Whether you’re preparing it for a weeknight dinner or a special occasion, this dish is sure to impress. With its creamy texture and savory flavors, it’s a crowd-pleaser that can be easily customized to suit various tastes.
By following the simple steps outlined in this guide, you can achieve a restaurant-quality meal at home. The ability to store leftovers for later meals adds to its convenience, making it a practical choice for families or individuals alike. Give Costco Chicken Alfredo a try and enjoy a delicious, stress-free dining experience that delivers both quality and comfort.