Turkey tetrazzini is a classic American dish known for its creamy texture, savory flavors, and comforting nature. This pasta casserole features turkey, mushrooms, and a rich sauce that’s both decadent and satisfying. It’s especially popular around Thanksgiving or other family gatherings, using leftover turkey as the main protein. The dish is easy to prepare, filling, and a crowd-pleaser, making it an ideal option for busy weeknights or special occasions.
Its unique blend of flavors, with a creamy sauce, tender turkey, and al dente pasta, creates a wonderful balance of richness and texture.
Ingredients
For the sauce:
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4 tbsp unsalted butter
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1 small onion, chopped
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2 garlic cloves, minced
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8 oz fresh mushrooms, sliced
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1/4 cup all-purpose flour
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2 cups chicken broth
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1 cup heavy cream
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1 cup grated Parmesan cheese
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Salt and pepper, to taste
For the pasta:



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12 oz pasta (spaghetti, fettuccine, or penne)
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2 cups cooked turkey, shredded or diced
For topping:
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1/2 cup breadcrumbs
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1/4 cup melted butter
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1/4 cup grated Parmesan cheese
Possible substitutions:
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Gluten-free: Use gluten-free pasta and flour.
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Vegetarian: Omit the turkey and add extra mushrooms or roasted vegetables.
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Dairy-free: Substitute with plant-based milk and dairy-free cheese options.
Step-by-Step Cooking Instructions
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Preheat the oven:
Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter or cooking spray. -
Cook the pasta:
In a large pot of boiling salted water, cook your chosen pasta according to the package instructions until al dente. Drain and set aside. -
Prepare the sauce:
In a large saucepan, melt butter over medium heat. Add the chopped onion and garlic, sautéing for about 3-4 minutes until softened. Add the sliced mushrooms and cook for another 5-6 minutes until the mushrooms are tender and browned. -
Make the roux:
Sprinkle the flour over the sautéed vegetables and stir to combine. Cook for about 1-2 minutes, allowing the flour to absorb the butter and form a roux. -
Add liquid ingredients:
Gradually whisk in the chicken broth and heavy cream, stirring constantly to prevent lumps. Continue to cook and stir until the sauce thickens (about 5-7 minutes). Once thickened, stir in the Parmesan cheese and season with salt and pepper to taste. -
Combine pasta and turkey:
In a large bowl, combine the cooked pasta, shredded turkey, and creamy sauce. Mix well to coat everything evenly. -
Transfer to baking dish:
Pour the pasta mixture into the prepared baking dish, spreading it out evenly. -
Prepare the topping:
In a small bowl, combine the breadcrumbs, melted butter, and Parmesan cheese. Sprinkle this mixture evenly over the casserole. -
Bake the casserole:
Bake in the preheated oven for 25-30 minutes, or until the top is golden brown and the sauce is bubbling. -
Serve:
Let the casserole sit for a few minutes before serving. Garnish with fresh parsley or additional grated Parmesan cheese if desired.
Pro Tips and Cooking Techniques
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Use leftover turkey: This is an excellent recipe for utilizing Thanksgiving or holiday turkey leftovers. The turkey adds protein and flavor to the dish.
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Don’t overcook the pasta: Ensure that the pasta is cooked al dente as it will continue to cook when baked in the casserole.
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Adjust creaminess: If you prefer a creamier texture, add extra heavy cream or a bit of cream cheese to the sauce.
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Make ahead: This dish can be assembled in advance and stored in the fridge for up to 24 hours before baking. It also freezes well for up to 3 months.
Variations and Customizations
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Vegetarian Version: Omit the turkey and substitute with more mushrooms, spinach, or a medley of roasted vegetables for a vegetarian option.
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Gluten-Free: Use gluten-free pasta and substitute the flour with a gluten-free blend or cornstarch for a gluten-free version.
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Low-Carb: For a low-carb alternative, use zucchini noodles (zoodles) or cauliflower rice instead of pasta.
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Spicy Twist: Add a bit of red pepper flakes or a chopped jalapeño to the sauce for a spicy kick.
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Cheese Varieties: Try different cheeses like cheddar or Gruyère for a unique flavor profile.
Serving Suggestions
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Garnish: Serve with a sprinkle of freshly chopped parsley or thyme for added freshness and color.
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Side Dishes: Pair with a crisp green salad, roasted vegetables, or garlic bread.
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Beverages: A glass of white wine (Chardonnay or Sauvignon Blanc) complements the creamy, savory flavors of the tetrazzini.
Nutritional Information (per serving)
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Calories: 450
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Protein: 28g
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Carbs: 40g
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Fats: 25g
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Fiber: 3g
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Sodium: 800mg
Note: Nutritional values are approximate and can vary based on ingredients used.
Frequently Asked Questions (FAQs)
Can I use rotisserie chicken instead of turkey?
Yes! Rotisserie chicken is a great substitute for turkey and can add a smoky flavor to the dish.
Can I prepare turkey tetrazzini in advance?
Yes, you can prepare the casserole up to 24 hours in advance. Just cover it and refrigerate, then bake as directed when you’re ready to serve.
Can I freeze turkey tetrazzini?
Yes, this dish freezes well. Simply bake the casserole, let it cool completely, and then wrap tightly in plastic wrap and foil. Freeze for up to 3 months.
How do I reheat turkey tetrazzini?
Reheat in the oven at 350°F for about 20 minutes or until heated through. You can also microwave individual portions.
Closing Thoughts
Turkey tetrazzini is the ultimate comfort food, combining creamy pasta with tender turkey and a savory sauce. Whether you’re using up Thanksgiving leftovers or just craving a hearty dish, this recipe is sure to satisfy. Plus, it’s versatile enough for many dietary needs and preferences. Don’t hesitate to experiment with different variations and enjoy making this classic dish your own.