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A baked turkey tetrazzini casserole with a golden-brown breadcrumb topping and a creamy sauce
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Turkey Tetrazzini

Make turkey tetrazzini with cooked turkey, spaghetti, mushrooms and a creamy sauce. Get tips for tender pasta and a moist, golden-topped bake.
Course Dinner
Cuisine American
Keyword turkey tetrazzini recipe
Prep Time 20 minutes
Cook Time 25 minutes
Total Time 45 minutes
Servings 8 servings
Calories 445kcal
Author C. Sophie

Equipment

  • Large pot
  • Skillet or Dutch Oven
  • 9x13-inch baking dish

Ingredients

Pasta

  • 12 ounces spaghetti broken in half

Sauce

  • 4 tablespoons unsalted butter
  • 8 ounces white button mushrooms sliced
  • 1 medium yellow onion finely diced
  • 3 cloves garlic minced
  • 1/4 cup all-purpose flour
  • 3 cups turkey broth
  • 1 cup half-and-half
  • 4 ounces garlic-herb cream cheese softened
  • 3 cups cooked turkey shredded or diced
  • 1 cup frozen peas thawed
  • 1 teaspoon dried Italian seasoning
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 cup shredded mozzarella cheese
  • 1/2 cup grated parmesan cheese divided
  • 1/2 cup panko breadcrumbs

Instructions

  • Preheat your oven to 350°F (175°C) and lightly grease a 9x13-inch baking dish with non-stick spray or butter.
  • Bring a large pot of salted water to a boil. Add the spaghetti and cook for 2 minutes less than the package directions for al dente; drain and set aside.
  • In a large skillet or Dutch oven, melt 4 tablespoons of butter over medium heat. Add the sliced mushrooms and diced onion, sautéing for 6 to 8 minutes until the mushrooms are browned and the onions are translucent.
  • Stir in the minced garlic and cook for 1 minute until fragrant. Sprinkle the flour over the vegetables and whisk constantly for 1 to 2 minutes to create a golden roux.
  • Slowly pour in the turkey broth and half-and-half while whisking continuously. Bring the mixture to a gentle simmer and cook for 3 to 5 minutes until the sauce has thickened enough to coat the back of a spoon.
  • Stir in the softened garlic-herb cream cheese, Italian seasoning, salt, and pepper until the cheese has melted and the sauce is smooth.
  • Add the cooked turkey, cooked spaghetti, and peas to the sauce. Toss well to ensure the pasta is thoroughly coated; the mixture should look slightly soupy as the pasta will absorb moisture during baking.
  • Transfer the mixture into the prepared baking dish. Top evenly with the shredded mozzarella and 1/4 cup of the parmesan cheese.
  • In a small bowl, toss the panko breadcrumbs with the remaining 1/4 cup of parmesan cheese and sprinkle the mixture evenly over the top of the casserole.
  • Bake for 25 to 30 minutes, or until the sauce is hot and bubbly and the breadcrumb topping is a deep golden brown. Let the dish rest for 5 minutes before serving.

Notes

Nutritional information:
  • Calories: 445
  • Protein: 27g
  • Carbohydrates: 37g
  • Fat: 21g
  • Saturated fat: 12g
  • Cholesterol: 60mg
  • Sodium: 780mg
  • Potassium: 400mg
  • Fiber: 4g
  • Sugar: 6g
  • Vitamin A: 1000 IU
  • Vitamin C: 20mg
  • Calcium: 20mg
  • Iron: 2.5mg
Tip: Let the preparation cool completely before sealing containers to limit condensation and preserve texture.