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Turkey Tetrazzini

A creamy baked pasta casserole loaded with shredded turkey, tender mushrooms, and spaghetti, all bound in a rich sherry-cream sauce and topped with a Parmesan-breadcrumb crust. The ideal way to transform leftover turkey into a crowd-pleasing dinner.

70 minMediumServes 6560 cal/serving

AmericanDinnerStovetop and OvenStandardHigh ProteinNut-FreeCorn-Free

Ingredients

  • 12 oz spaghetti or thin spaghetti, broken in half
  • 3 cups cooked turkey, shredded or cubed
  • 6 tbsp unsalted butter
  • 1 yellow onion, diced
  • 2 celery stalks, thinly sliced
  • 8 oz cremini mushrooms, sliced
  • 3 garlic cloves, minced
  • 6 tbsp all-purpose flour
  • 2 cups chicken or turkey broth
  • 1 cup heavy cream
  • 1/4 cup dry sherry (or substitute chicken broth)
  • 1 cup frozen peas
  • 1 tsp salt
  • 1/2 tsp black pepper, freshly ground
  • 1/2 cup Parmesan cheese, grated
  • 1/2 cup panko breadcrumbs

Instructions

  1. 1

    Preheat oven to 375 F (190 C) and grease a 9x13-inch baking dish. Cook 12 oz broken in half spaghetti or thin spaghetti in salted boiling water until barely al dente, 1-2 minutes less than package directions. Drain and set aside.

  2. 2

    In a large deep skillet, melt 6 tbsp unsalted butter over medium-high heat. Add 1 diced yellow onion and 2 thinly sliced celery stalks and cook until softened, about 4 minutes. Add 8 oz sliced cremini mushrooms and cook, stirring, until they release their liquid and turn golden, about 5 minutes. Add 3 minced garlic cloves and cook 30 seconds.

  3. 3

    Sprinkle 6 tbsp all-purpose flour over the vegetables and stir for 1-2 minutes until the raw flour smell is gone. Gradually whisk in 2 cups chicken or turkey broth, then 1 cup heavy cream and 1/4 cup dry sherry (or substitute chicken broth), until smooth.

  4. 4

    Bring to a simmer and cook, stirring, until the sauce is thick enough to coat the back of a spoon, about 4 minutes. Season with 1 tsp salt and 1/2 tsp freshly ground black pepper.

  5. 5

    Remove from heat. Stir in the drained spaghetti or thin spaghetti, 3 cups shredded or cubed cooked turkey, and 1 cup frozen peas until everything is evenly coated. Transfer to the prepared baking dish.

  6. 6

    In a small bowl, toss 1/2 cup panko breadcrumbs with 1/2 cup grated Parmesan cheese and scatter evenly over the top of the casserole.

  7. 7

    Bake uncovered until the topping is golden and the casserole is bubbling, 25-30 minutes. Let rest 10 minutes before serving.

Questions

Can I make Turkey Tetrazzini dairy-free?

Yes. The dairy in this entry is 6 tbsp unsalted butter, 1 cup heavy cream, 1/2 cup Parmesan cheese, grated. Swap the butter for olive oil where it melts, or a plant-based block butter where it is creamed; the cream for full-fat coconut milk or an oat cooking cream; the cheese for a plant-based melting cheese (expect a milder flavor). The richness shifts slightly, but the method does not change.

Can I make Turkey Tetrazzini gluten-free?

Yes. The gluten in this entry is 12 oz spaghetti or thin spaghetti, broken in half, 6 tbsp all-purpose flour, 1/2 cup panko breadcrumbs. Swap the pasta for a gluten-free one, cooked a minute short of its package time; the flour for a 1-to-1 gluten-free baking blend (where it only thickens a sauce, half as much cornstarch also works); the bread or crumbs for a gluten-free loaf or gluten-free panko. Everything else proceeds as written.

Can I make Turkey Tetrazzini ahead?

Yes, it takes well to being made ahead. Refrigerate leftovers within two hours and eat them within three days. Reheat covered in a 300 F oven until warmed through.

Can I halve or double Turkey Tetrazzini?

Yes. As written it serves 6. Every ingredient in this entry carries precomputed half and double quantities, and the app's batch dial rewrites them inside each step. Doubled, split it across two pans and rotate them halfway; one crowded pan bakes unevenly.

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