Creamy Cheddar Chicken Spaghetti Casserole: Your Ultimate Comfort Food Dinner
There’s nothing quite like a warm, comforting casserole to bring the family together, and this Cheddar Chicken Spaghetti Casserole is a prime example. It’s a delightful dish where tender spaghetti mingles with succulent chicken, all bathed in a rich, creamy cheddar sauce. What truly elevates this casserole beyond the ordinary are the subtle yet impactful additions of pimentos, green chilies, and the distinct, aromatic touch of tarragon. This unique combination creates a flavor profile that is both familiar and exciting, making it a standout weeknight meal or a fantastic option for potlucks.
Tarragon, with its slightly licorice-like, peppery, and sweet notes, is an herb that I absolutely adore pairing with chicken. The flavors harmonize beautifully, lending an unexpected sophistication to this otherwise humble dish. The mild heat from the green chilies and the sweet-peppery burst of pimentos cut through the richness of the cheese and soup, creating a perfectly balanced and incredibly satisfying experience with every forkful. This casserole isn’t just a meal; it’s a culinary hug in a baking dish.
Effortless & Quick: Your Weeknight Dinner Solution
One of the many reasons to love this Cheddar Chicken Spaghetti casserole is how quickly it comes together, especially if you’re a savvy meal prepper. The majority of the “active” time is dedicated to cooking and draining the spaghetti. If you keep cooked chicken on hand in your freezer – a practice I highly recommend and encourage as part of efficient meal planning – your prep time can be drastically cut down. Having pre-cooked, shredded, or diced chicken ready means you can skip a whole cooking step, transforming this into an exceptionally fast assembly process.
For those starting from scratch, allow about 15 minutes for preliminary preparation, which includes cubing your chicken, grating cheese, and gathering all your ingredients. The actual baking time is roughly 20-25 minutes, meaning you can have a bubbling hot, incredibly flavorful Cheddar Chicken Spaghetti casserole on the table in as little as 40 minutes. This makes it an ideal choice for busy weeknights when you want a homemade meal without spending hours in the kitchen. It’s a testament to how simple ingredients can create something truly spectacular with minimal fuss.
Key Ingredients for a Delicious Casserole
The beauty of this casserole lies in its simple yet robust ingredient list. Each component plays a vital role in building the layers of flavor and texture that make this dish so irresistible.
- Cooked Spaghetti: The foundation of our casserole. While spaghetti is traditional, other pasta shapes like fettuccine, linguine, or even penne can work well, offering a different textural experience.
- Cooked Chicken: The star protein! Using pre-cooked chicken (whether from your freezer stash, leftover roasted chicken, or a convenient rotisserie chicken*) is key to speeding up prep time. Shredded or cubed chicken breast or thighs are excellent choices.
- Shredded Cheddar Cheese: Provides that classic cheesy goodness and creamy texture. Sharp cheddar offers the most flavor, but medium cheddar works too. Freshly shredded cheese melts more smoothly than pre-shredded.
- Cream of Chicken Soup (Condensed): This canned soup is a convenience hero, contributing to the casserole’s creamy base and savory chicken flavor without extra effort.
- Milk: Thins out the soup and helps create the perfect consistency for the sauce. Whole milk or 2% milk will yield the creamiest results.
- Pimientos: These diced, roasted red peppers add a touch of sweetness, a subtle tang, and vibrant color, enhancing the overall appeal and flavor.
- Green Chilies (Canned, Diced): Typically mild, these provide a very gentle warmth and earthy flavor that complements the chicken and cheese beautifully without being overly spicy. Adjust quantity based on your preference for heat.
- Dried Tarragon: The secret ingredient! Tarragon’s unique anise-like, slightly peppery, and sweet flavor profile is exceptional with chicken and dairy, elevating the casserole from good to gourmet.
- Salt & Pepper: Essential for seasoning and balancing all the flavors. Always taste and adjust to your liking.
- Non-stick cooking spray: For easy cleanup and preventing sticking.
*For even more easy weeknight dinner ideas, be sure to check out my other rotisserie chicken recipes!
Making it Vegetarian: A Plant-Based Twist
This Cheddar Chicken Spaghetti casserole is incredibly adaptable, and transforming it into a delicious vegetarian meal is remarkably simple. Instead of chicken, you can substitute an equal amount of hearty vegetables like steamed broccoli florets, sautéed red bell peppers, sliced mushrooms, or even a combination of your favorite veggies. These vegetables add texture, nutrients, and their own unique flavors to the dish.
To keep the creamy base suitable for a vegetarian diet, simply swap the condensed cream of chicken soup for condensed cream of celery soup or cream of mushroom soup. These alternatives will maintain the luscious texture and savory depth of the sauce without any meat products. You could also experiment with adding some smoked paprika for a hint of smoky flavor that would complement the vegetables and cheese wonderfully. This flexibility ensures that everyone can enjoy a version of this delightful casserole, regardless of dietary preferences.
Step-by-Step Guide to Casserole Perfection
Preparing this casserole is straightforward, making it perfect for novice cooks and seasoned chefs alike. Follow these simple steps for a perfectly baked, flavorful dish.
- Prepare the Spaghetti: Cook your spaghetti according to package directions until al dente. This is crucial because the pasta will continue to cook slightly in the oven. Drain it well and set aside.
- Dice the Chicken: If you haven’t already, dice or shred your cooked chicken into bite-sized pieces. Ensure it’s ready to mix.
- Combine the Creamy Base: In a large mixing bowl, combine the diced chicken, one cup of shredded cheddar cheese (reserving the other cup for topping), the condensed cream of chicken soup, milk, diced pimentos, canned diced green chilies, dried tarragon, salt, and pepper. Mix all these ingredients thoroughly until well combined and the sauce is smooth.
- Fold in the Spaghetti: Add the cooked and drained spaghetti to the chicken mixture. Gently fold it in, making sure all the spaghetti strands are coated with the creamy sauce. Be careful not to break the spaghetti too much during this step.
- Prepare for Baking: Generously grease a 13x9x2 inch baking dish with non-stick cooking spray to prevent sticking and ensure easy cleanup.
- Assemble the Casserole: Pour the spaghetti and chicken mixture evenly into the prepared baking dish.
- Add the Final Touch: Sprinkle the remaining cup of shredded cheddar cheese over the top of the casserole. This will create a beautiful golden-brown crust as it bakes.
- Bake to Perfection: Bake the uncovered casserole in a preheated oven at 350°F (175°C) for 20-25 minutes, or until the casserole is heated through, bubbling around the edges, and the cheese topping is melted and slightly golden.
- Serve Immediately: Let it rest for a few minutes before serving to allow the flavors to meld and the casserole to set slightly.
Perfect Pairings: What to Serve with Your Casserole
When serving a rich and flavorful casserole like Cheddar Chicken Spaghetti, I always recommend keeping the side dishes simple and fresh. This ensures that the casserole remains the star of the meal and prevents an overload of competing flavors. The goal is to complement, not overpower.
Classic choices include a steamed green vegetable such as crisp green beans, tender broccoli florets, or vibrant asparagus. These add a much-needed burst of color and a refreshing counterpoint to the creamy pasta. A simple garden salad or a crisp Caesar salad is another excellent option. The fresh, tangy dressing and crunchy greens provide a wonderful textural contrast and lightness that balances the heartiness of the casserole. For those who enjoy a little extra crunch, a side of garlic bread or crusty artisanal bread is always a welcome addition, perfect for soaking up any extra sauce.
Batch Cooking & Freezing for Future Meals
One of the fantastic advantages of this Cheddar Chicken Spaghetti casserole is how well it freezes, making it an ideal candidate for meal prepping or batch cooking. If you’re looking to stock your freezer with delicious, ready-to-bake meals, doubling this recipe is a smart move. Having a casserole ready to go on a busy night can be a true lifesaver.
To freeze the casserole, assemble it in a freezer-safe baking dish or disposable foil pan, but do not bake it. Once assembled, cover the dish tightly with a layer of plastic wrap, followed by a layer of aluminum foil or freezer paper to prevent freezer burn. Be sure to label it clearly with “Cheddar Chicken Spaghetti” and include baking instructions: “Thaw completely in the refrigerator overnight, then bake uncovered at 350ºF (175°C) for 20-25 minutes, or until heated through and bubbly.” If baking from frozen, you will need to increase the baking time significantly, likely to 45-60 minutes, covering it with foil for the first 30 minutes to prevent the top from burning, then uncovering for the remainder of the cook time until it’s hot and bubbly throughout.
Recipe Card: Cheddar Chicken Spaghetti
Cheddar Chicken Spaghetti
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Ingredients
- 8 ounces spaghetti
- 2 cups cooked chicken, shredded or cubed
- 2 cups shredded sharp cheddar cheese, divided
- 10.5 ounces condensed cream of chicken soup
- 1 cup milk
- 1 tablespoon diced pimientos
- 4.5 ounces can diced mild green chilies
- 1 tablespoon dried tarragon
- ¼ teaspoon salt
- ¼ teaspoon black pepper
- non-stick cooking spray
Instructions
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Cook 8 ounces spaghetti according to package instructions until al dente. Drain thoroughly.
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Cube or shred 2 cups cooked chicken.
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In a large bowl, combine the chicken, half of the 2 cups shredded cheddar cheese, 10.5 ounces condensed cream of chicken soup, 1 cup milk, 1 tablespoon diced pimientos, 4.5 ounces can diced green chilies, 1 tablespoon dried tarragon, ¼ teaspoon salt, and ¼ teaspoon pepper. Mix until well combined.
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Add the cooked spaghetti to the mixture and gently fold it in until all strands are coated.
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Spray a 13×9 inch baking pan generously with non-stick cooking spray.
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Transfer the spaghetti mixture to the prepared baking dish and spread evenly. Top with the remaining half of the cheddar cheese.
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Bake uncovered at 350°F (175°C) for 20-25 minutes, or until the casserole is heated through and bubbly, and the cheese is melted and golden.
Notes
Nutrition per serving
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Why You’ll Adore This Creamy Cheddar Chicken Spaghetti
This casserole isn’t just another dish; it’s a testament to the power of simple, comforting ingredients coming together to create something truly special. Here’s why this Cheddar Chicken Spaghetti will quickly become a favorite in your recipe rotation:
- Ultimate Comfort Food: Few dishes offer the same heartwarming satisfaction as a creamy, cheesy casserole. It’s the perfect meal for a cozy family dinner or to share with friends.
- Quick and Easy: With pre-cooked chicken, this recipe minimizes active cooking time, making it an excellent choice for busy weeknights when you need a delicious meal in a hurry.
- Flavorful and Unique: The blend of pimentos, green chilies, and especially tarragon, creates a taste that stands out from typical chicken and pasta bakes. It’s familiar yet exciting.
- Family-Friendly: Kids and adults alike will love the creamy pasta, tender chicken, and cheesy topping. It’s a guaranteed crowd-pleaser that satisfies all appetites.
- Versatile and Adaptable: Easily customize it with different vegetables, cheeses, or even a vegetarian protein source, as highlighted in our vegetarian option section.
- Excellent for Meal Prep: Its freezer-friendly nature means you can whip up a batch, enjoy one for dinner, and save another for a future hassle-free meal.
Chef’s Tips for Casserole Perfection
To ensure your Cheddar Chicken Spaghetti casserole turns out perfectly every time, keep these helpful tips in mind:
- Don’t Overcook the Spaghetti: Al dente pasta is crucial. It will continue to absorb liquid and cook further in the oven, so slightly undercooking it initially prevents it from becoming mushy.
- Freshly Shredded Cheese is Best: While pre-shredded cheese is convenient, it often contains anti-caking agents that can affect how smoothly it melts. For the creamiest sauce and best topping, shred your own cheddar from a block.
- Season to Taste: Always taste your mixture before adding it to the baking dish. Adjust the salt and pepper as needed, keeping in mind the saltiness of the condensed soup and cheese.
- Gentle Mixing: When combining the spaghetti with the sauce, mix gently to avoid breaking the pasta strands. You want long, tender spaghetti in your casserole.
- Rest Before Serving: Allow the casserole to rest for 5-10 minutes after it comes out of the oven. This helps the sauce thicken slightly and makes for cleaner serving.
- Even Heat Distribution: Ensure your ingredients are at room temperature as much as possible before mixing to promote even baking.
Creative Variations for Your Casserole
While the classic Cheddar Chicken Spaghetti is delicious as written, don’t hesitate to experiment and make it your own! Here are a few ideas to inspire your culinary creativity:
- Spice it Up: For a kick, add a pinch of red pepper flakes, a dash of hot sauce to the mixture, or use spicier green chilies (like jalapeños) instead of mild ones.
- Add More Vegetables: Sneak in extra nutrition and flavor with sautéed onions, garlic, frozen peas, corn, or spinach (sautéed and squeezed dry) to the chicken mixture.
- Cheese Swaps: Experiment with different cheeses! Monterey Jack, Colby, or a Mexican blend can offer a slightly different flavor and melt beautifully. A sprinkle of Parmesan on top could also add a salty, umami crust.
- Herb Alternatives: If tarragon isn’t your favorite, or you’re looking for a different profile, consider fresh parsley, chives, or even a hint of dried thyme.
- Crispy Topping: For an added textural crunch, mix some crushed butter crackers or panko breadcrumbs with a tablespoon of melted butter and sprinkle over the cheese topping before baking.
- Protein Switch: Cooked turkey or even shredded pork could be substituted for the chicken, offering a different take on the classic.
Frequently Asked Questions (FAQs)
Here are answers to some common questions about making and enjoying this delicious casserole:
Q: Can I use raw chicken in this recipe?
A: This recipe calls for pre-cooked chicken to ensure a quick assembly and baking time. If you use raw chicken, it will need to be cooked through before mixing with the other ingredients. You can boil, bake, or pan-fry chicken breasts or thighs, then cube or shred them, adding about 15-20 minutes to your total prep time.
Q: Can I make this casserole gluten-free?
A: Absolutely! Simply substitute regular spaghetti with your favorite gluten-free spaghetti. Most brands hold up well in casseroles. Ensure your cream of chicken soup and any other packaged ingredients are certified gluten-free.
Q: How long does Cheddar Chicken Spaghetti last in the refrigerator?
A: Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. Reheat gently in the microwave or oven until warmed through.
Q: What if I don’t have condensed cream of chicken soup?
A: You can make a homemade cream sauce. Melt 2 tablespoons of butter, whisk in 2 tablespoons of flour, cook for 1 minute, then slowly whisk in 1 cup of chicken broth and 1 cup of milk. Simmer until thickened, then season with salt, pepper, and a pinch of poultry seasoning or dried herbs. This homemade version will replace the canned soup and milk called for in the recipe.
Q: Can I prepare this casserole ahead of time?
A: Yes, you can assemble the casserole completely (without baking) and store it covered in the refrigerator for up to 24 hours. When ready to bake, add about 10-15 minutes to the baking time since it will be chilled.
Don’t Forget to Pin This Recipe!
Loved this recipe? Make sure to save it for later! Pin this delicious Cheddar Chicken Spaghetti Casserole to your favorite Pinterest board so you can easily find it whenever you’re craving a comforting, easy-to-make dinner.
