As I rummaged through my kitchen cupboards on a chilly evening, the only sound was the soft clink of my pots and pans, calling to me. That’s when I decided to create something cozy: an Easy, Creamy Gluten-Free Chicken Tetrazzini. This beloved dish not only wraps you in warmth but also delivers on flavor and comfort. With tender chicken, gluten-free noodles, and a rich, cheesy cream sauce, this casserole is perfect for weeknight dinners when you’re short on time. Plus, it’s incredibly versatile—great for using up leftover turkey or ham! If you’re looking to savor every bite while keeping it gluten-free, this recipe has got you covered. So, are you ready to turn your kitchen into a comfort food haven?

Why Is This Chicken Tetrazzini Amazing?
Ultimate Comfort: This creamy chicken tetrazzini is the definition of comfort food, offering a warm and satisfying meal that’s perfect for any cozy night in.
Gluten-Free Delight: Enjoy a classic dish without the gluten, making it suitable for everyone at the table.
Versatile Ingredients: Use leftover chicken, turkey, or even ham to whip up a delicious dish that reduces food waste.
Quick Preparation: With easy-to-follow steps, you can have this mouthwatering casserole ready in no time. Pair it with a fresh salad or some garlic bread for a complete meal! Whether you’re a busy chef or just looking for a great family recipe, this dish checks all the boxes. Enjoy the leftovers with delicious options like Crack Chicken Penne or Sweet Chili Chicken.
Chicken Tetrazzini Recipe Ingredients
Prepare your kitchen for a delightful culinary experience with these essential ingredients for the best chicken tetrazzini!
For the Casserole
- 3 cups cooked and chopped chicken – Use leftover chicken or rotisserie for convenience in this chicken tetrazzini recipe.
- 12 ounces gluten-free spaghetti noodles – Barilla brand is recommended for a great texture that holds up in the casserole.
- 5 tablespoons unsalted butter – Split between sautéing mushrooms and creating a velvety sauce.
- 1 pound mushrooms – Adds depth and flavor; feel free to use your favorite variety.
- 3 cloves garlic – Minced for an aromatic kick that enhances the overall flavor.
For the Cream Sauce
- ⅓ cup gluten-free all-purpose flour – This will thicken the sauce beautifully; select a blend that’s ideal for baking.
- 1 teaspoon dried basil – A lovely herbaceous addition; fresh herbs can also shine through if you prefer!
- 1 teaspoon dried oregano – Complements the basil well, adding an Italian flair.
- ½ teaspoon garlic powder – Boosts the garlic flavor without adding texture from fresh garlic.
- ⅛ teaspoon ground nutmeg – Lends warmth and a hint of sweetness to the creamy sauce.
- ¾ teaspoon salt – Enhances all flavors; always adjust to suit your palate.
- ⅛ teaspoon pepper – Adds a touch of mild heat; use freshly ground for better flavor.
- 2 cups gluten-free chicken broth – Choose homemade or store-bought for the base of your sauce.
- ¼ cup dry white wine – Optional, yet it enhances the sauce’s depth; feel free to skip if preferred.
- 2 cups half and half – Creates that extra creamy texture; consider a dairy-free heavy cream for an alternative.
- 1½ cup freshly grated mozzarella (divided) – Covers the casserole with a melty topping; shredded works best.
- ¾ cup freshly grated Parmesan cheese (divided) – Provides a tangy sharpness, though Pecorino is another great choice.
With these dreamy ingredients at your fingertips, you’re one step closer to serving up a family favorite that warms the heart!
Step‑by‑Step Instructions for Extra Creamy Gluten-Free Chicken Tetrazzini Casserole
Step 1: Preheat and Prep
Begin by preheating your oven to 350ºF (175ºC). While the oven warms, prepare your chicken by either boiling, baking, or using precooked chicken for convenience. Ensure it’s cooked through and chopped into bite-sized pieces, ready to mingle with the other delicious elements in your chicken tetrazzini.
Step 2: Cook the Noodles
Boil a large pot of water, adding a pinch of salt. Once boiling, add the 12 ounces of gluten-free spaghetti noodles. Cook the noodles for only half the package time, stirring occasionally. They should be al dente. Drain the cooked noodles and rinse them under cold water to halt further cooking, ensuring optimal texture when baked.
Step 3: Sauté the Vegetables
In a large skillet, melt 1 tablespoon of unsalted butter over medium heat. Add 1 pound of sliced mushrooms and sauté for 5-7 minutes until they release their moisture and begin to brown. Stir in 3 minced garlic cloves and cook for an additional 30 seconds until fragrant. Remove from heat and set the mixture aside for later layering in the casserole.
Step 4: Make the Cream Sauce
In a medium saucepan, melt the remaining 4 tablespoons of unsalted butter over medium heat. Whisk in ⅓ cup of gluten-free all-purpose flour, along with 1 teaspoon of dried basil, 1 teaspoon of dried oregano, ½ teaspoon of garlic powder, ⅛ teaspoon of ground nutmeg, ¾ teaspoon of salt, and ⅛ teaspoon of pepper. Cook for about 30 seconds, stirring constantly to create a roux.
Step 5: Combine the Liquids
Slowly whisk in 2 cups of gluten-free chicken broth and ¼ cup of dry white wine (if using) into the roux you just made. Gradually incorporate 2 cups of half and half while whisking continuously. Bring the mixture to a gentle boil over medium heat, allowing it to thicken for 5-7 minutes. Once thickened, stir in ¾ cup of both mozzarella and Parmesan cheese until fully melted and creamy.
Step 6: Assemble the Casserole
In a 9×13 inch casserole dish, spread ½ cup of the creamy sauce on the bottom to prevent sticking. Layer half of the cooked spaghetti noodles over the sauce, followed by half of the cooked chicken and sautéed mushrooms mixture. Repeat this layering process, finishing with the remaining creamy sauce on top to ensure every bite of chicken tetrazzini is flavorful.
Step 7: Add the Cheese Topping
Sprinkle the remaining ¾ cup of mozzarella cheese and ¼ cup of Parmesan cheese evenly over the casserole. This top layer will create a delightful, golden, bubbling crust as it bakes. This final touch is key for a rich comfort food experience, so make sure it’s generously covered.
Step 8: Bake and Broil
Place the casserole in the preheated oven uncovered. Bake for 30-40 minutes, until the dish is hot and bubbly, and the cheese has melted beautifully. For an extra golden topping, you can switch to broil during the last 1-2 minutes, keeping a close eye to avoid burning, as this step creates that irresistible crispy crust.

Make Ahead Options
These Easy, Creamy Gluten-Free Chicken Tetrazzini Casserole is perfect for meal prep! You can prepare the chicken (about up to 3 days in advance) and cook the gluten-free noodles, then refrigerate them in an airtight container to maintain their quality. You might also want to sauté the mushrooms and garlic ahead of time; this can be done up to 24 hours before baking. When it’s time to serve, simply layer everything in the casserole dish as instructed, pour the cream sauce over, top with cheese, and bake it in the oven for about 30-40 minutes until bubbly and golden. This way, you enjoy the comfort of a homemade meal with minimal effort on busy nights!
What to Serve with Extra Creamy Gluten-Free Chicken Tetrazzini?
Enhance your dining experience with perfectly paired sides and drinks that complement the comforting flavors of your casserole.
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Garlic Bread: The perfect pairing for scooping up creamy sauce while adding a satisfying crunch and aromatic flavor.
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Roasted Green Beans: Crisp-tender green beans offer a fresh, bright element to balance the richness of the tetrazzini. Drizzle with lemon juice for an extra zing!
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Caesar Salad: A classic salad adorned with crunchy croutons and tangy dressing adds a refreshing contrast to the creamy pasta. The crisp greens help lighten the meal wonderfully.
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Steamed Broccoli: Mildly crisp broccoli not only adds color but also introduces a healthy, nutritious element, perfect for balancing the richness of the casserole.
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Chardonnay: A chilled glass of Chardonnay’s bright acidity beautifully complements the creamy sauce, enriching the overall tasting experience with its fruity notes.
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Apple Crisp: End on a sweet note with a warm, spiced apple crisp. Its crunchy topping and tender fruit create a delightful contrast to the savory tetrazzini, making for a comforting dessert.
How to Store and Freeze Chicken Tetrazzini
Fridge: Store leftover chicken tetrazzini in an airtight container for up to 4 days. Reheat individual portions in the microwave or oven until heated through, ensuring it stays creamy.
Freezer: This casserole is freezer-friendly! Wrap the dish tightly in plastic wrap and then in aluminum foil to prevent freezer burn. It can be frozen for up to 3 months.
Thawing: To enjoy your frozen chicken tetrazzini, transfer it to the fridge to thaw overnight before reheating. For a quicker method, you can reheat from frozen in the oven at 350°F for about 1 hour.
Reheating: Warm up leftover portions in the microwave or bake in the oven until bubbly. Adding a splash of milk or a bit of broth during reheating will help retain its creamy texture.
Tips for the Best Chicken Tetrazzini
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Noodle Texture: Make sure to boil the gluten-free noodles only for half the recommended time to avoid a mushy casserole. This helps maintain a pleasant texture in your chicken tetrazzini.
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Sauce Coating: Ensure all noodles are generously coated with sauce during layering. This prevents any dry spots in the casserole and guarantees every bite is heavenly!
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Cheese Choice: For a melty topping, use freshly shredded mozzarella and Parmesan cheese. Pre-shredded varieties often have additives that prevent optimal melting.
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Leftover Magic: Don’t hesitate to substitute chicken with leftover turkey or ham. It not only reduces waste but also adds a delightful twist to your chicken tetrazzini recipe.
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Storage Tips: If you have leftovers, store them in an airtight container in the refrigerator for up to 4 days, or freeze for longer storage, ensuring it’s well-wrapped to avoid freezer burn.
Chicken Tetrazzini Recipe Variations
Feel free to personalize your chicken tetrazzini to suit your taste or whatever you have on hand—this dish is so versatile!
- Turkey Swap: Substitute the chicken for an equal amount of cooked turkey. It’s perfect for utilizing holiday leftovers!
- Ham Replacement: Use cooked ham in place of chicken for a savory twist. The flavors blend beautifully with the creamy sauce.
- Mushroom Medley: Experiment with different mushroom varieties like shiitake or portobello for richer flavor and texture differences.
- Spice It Up: Add a pinch of red pepper flakes for a hint of heat. It brings a delightful kick to every bite.
- Herb Boost: Incorporate fresh herbs like rosemary or thyme to elevate the flavor. Fresh herbs can provide that garden-fresh taste!
- Dairy-Free Delight: Use vegan butter, dairy-free heavy cream, and plant-based cheese alternatives for a creamy, gluten-free experience.
- Nutty Flavor: For added richness, include a handful of toasted pine nuts or chopped pecans. This will give your tetrazzini a delightful crunch!
- Broccoli Addition: Toss in steamed broccoli florets for a burst of color and nutrition. It’s an easy way to sneak in extra veggies.
With these fun variations, your chicken tetrazzini dinner can be anything but ordinary! Make sure to enjoy a cozy evening with this dish, alongside favorites like Creamy Crack Chicken Noodle or Sheet Pan Chicken.

Easy, Creamy Gluten-Free Chicken Tetrazzini Recipe FAQs
How do I choose the right chicken for this recipe?
Absolutely! Using cooked and chopped chicken significantly enhances this dish. You can opt for leftover roasted chicken, a store-bought rotisserie chicken, or simply cook boneless chicken breasts by boiling or baking them until they reach an internal temperature of 165°F (74°C). If you need a quick meal prep, I recommend using rotisserie for convenience and flavor.
What is the best way to store leftover chicken tetrazzini?
For sure! Store leftover chicken tetrazzini in an airtight container in the refrigerator for up to 4 days. When reheating, you can use a microwave or oven; just be sure to add a splash of milk or broth to keep it creamy. It’s best enjoyed fresh, but leftovers can be just as delightful with a little care!
Can I freeze chicken tetrazzini? If so, how?
Very much so! This casserole freezes beautifully. First, allow it to cool completely after cooking. Then, tightly wrap the dish with plastic wrap followed by aluminum foil to prevent freezer burn. You can freeze it for up to 3 months. When you’re ready to enjoy it, thaw the casserole in the fridge overnight before reheating, or bake it from frozen for about 1 hour at 350°F (175°C).
What if my sauce is too thick or too thin?
Great question! If the sauce is too thick, you can gently whisk in a little more chicken broth or half-and-half until it reaches your desired consistency. On the flip side, if it’s too thin, let it simmer on low heat for a few more minutes to thicken, whisking occasionally. This will help achieve the perfect creamy texture!
Are there any dietary considerations I should be aware of?
Definitely! This recipe is gluten-free, but if you’re accommodating allergies, ensure your gluten-free flour and broth are certified gluten-free. For dairy-free options, use vegan butter, dairy-free heavy cream, and a plant-based cheese alternative. Always check labels for any allergens, especially if cooking for guests with specific dietary needs.
Can I substitute the mushrooms in this recipe?
Certainly! If mushrooms aren’t your favorite, you can omit them or even substitute them with diced bell peppers or zucchini for a different flavor. You might also consider adding cooked spinach or broccoli for extra nutrients. The more the merrier, so feel free to experiment with your preferred veggies in this creamy chicken tetrazzini recipe!

Creamy Chicken Tetrazzini Recipe for Ultimate Comfort Food
Ingredients
Equipment
Method
- Preheat oven to 350ºF (175ºC). Prep chicken, ensuring it's cooked and chopped into bite-sized pieces.
- Boil a large pot of water, adding a pinch of salt. Cook the gluten-free spaghetti noodles for half the package time. Drain and rinse under cold water.
- In a large skillet, melt 1 tablespoon of unsalted butter. Sauté the sliced mushrooms for 5-7 minutes, then add minced garlic and cook for 30 seconds.
- In a medium saucepan, melt the remaining 4 tablespoons of butter and whisk in flour, basil, oregano, garlic powder, nutmeg, salt, and pepper to create a roux.
- Slowly whisk in chicken broth and white wine (if using). Stir in half and half and bring to a gentle boil, cooking until thickened. Add mozzarella and Parmesan until melted.
- In a casserole dish, spread ½ cup of the creamy sauce on the bottom. Layer half of the noodles, chicken, and mushroom mixture. Repeat layers, finishing with sauce on top.
- Sprinkle remaining mozzarella and Parmesan cheese on top. Bake uncovered for 30-40 minutes until hot and bubbly.
- For a golden topping, broil for the last 1-2 minutes, watching closely to avoid burning.
