Leftover Turkey Tetrazzini Casserole

Why You’ll Love This Recipe

This recipe is the ultimate comfort food, combining creamy textures with hearty ingredients in one dish. It’s easy to prepare, makes great use of leftovers, and feeds a crowd with minimal effort. The balance of tender turkey, flavorful sauce, and baked cheesy crust makes every bite satisfying. Plus, it reheats beautifully, making it perfect for meal prep.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

cooked turkey (shredded or diced)
spaghetti or linguine
butter
onion (chopped)
garlic (minced)
mushrooms (sliced)
flour
chicken or turkey broth
milk or cream
parmesan cheese (grated)
mozzarella cheese (optional)
salt
black pepper
parsley (optional)

Directions

Begin by cooking the pasta according to package instructions until al dente. Drain and set aside.

In a large skillet, melt butter over medium heat. Add the chopped onion and cook until softened, then stir in the garlic and cook briefly.

Add the sliced mushrooms and sauté until they release their moisture and become tender.

Sprinkle the flour over the mixture and stir well to form a roux. Gradually add the broth and milk, stirring constantly to create a smooth and creamy sauce.

Stir in the cooked turkey and season with salt, pepper, and parsley. Let the mixture simmer until slightly thickened.

Combine the cooked pasta with the sauce, mixing until everything is well coated.

Transfer the mixture to a greased baking dish and sprinkle the top with parmesan and mozzarella cheese.

Bake in a preheated oven until the casserole is bubbly and the top is golden brown.

Let it cool slightly before serving.

Servings and timing

This recipe serves about 6 people.
Preparation time is around 20 minutes, cooking and baking take about 30–35 minutes, making the total time approximately 50–55 minutes.

Variations

You can substitute turkey with chicken or even canned tuna for a different twist.
Add vegetables like peas, spinach, or broccoli for extra nutrition.
Use different cheeses such as cheddar or Gruyère for a richer flavor.
For a lighter version, use low-fat milk and reduce the amount of cheese.
Add a crunchy topping like breadcrumbs mixed with butter for extra texture.

Storage/Reheating

Store leftovers in an airtight container in the refrigerator for up to 4 days.
To reheat, cover and warm in the oven until heated through, or microwave individual portions. Add a splash of milk if the sauce thickens too much.

FAQs

Can I freeze Turkey Tetrazzini?

Yes, it freezes well. Store it in a freezer-safe container for up to 2 months and thaw before reheating.

What type of pasta works best?

Spaghetti and linguine are traditional, but any long or short pasta will work.

Can I make this ahead of time?

Yes, assemble the casserole ahead and refrigerate it until ready to bake.

Why is my sauce too thick?

You can thin it out by adding a bit more broth or milk.

Can I use canned soup instead of making the sauce?

Yes, cream of mushroom soup can be used as a shortcut.

How do I prevent the casserole from drying out?

Cover it with foil while reheating and add a little liquid if needed.

Can I make it gluten-free?

Yes, use gluten-free pasta and substitute flour with a gluten-free alternative.

What can I use instead of mushrooms?

You can omit them or replace them with vegetables like zucchini or bell peppers.

How do I get a crispy topping?

Add breadcrumbs mixed with butter or extra cheese before baking.

Is this dish kid-friendly?

Yes, its creamy texture and mild flavor make it appealing to most kids.

Conclusion

Leftover Turkey Tetrazzini Casserole is a comforting, crowd-pleasing dish that turns simple leftovers into a rich and flavorful meal. With its creamy sauce, tender pasta, and golden topping, it’s a reliable recipe you’ll want to make again and again whenever you have extra turkey on hand.

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Leftover Turkey Tetrazzini Casserole

Leftover Turkey Tetrazzini Casserole

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Leftover Turkey Tetrazzini Casserole is a creamy, comforting pasta bake with tender turkey, mushrooms, and a rich cheese topping, perfect for turning leftovers into a satisfying meal.

  • Author: Laura
  • Prep Time: 20 minutes
  • Cook Time: 30 minutes
  • Total Time: 50 minutes
  • Yield: 6 servings
  • Category: Main Course
  • Method: Baking
  • Cuisine: American
  • Diet: Halal

Ingredients

  • 2 cups cooked turkey, shredded or diced
  • 12 oz spaghetti or linguine
  • 3 tablespoons butter
  • 1 small onion, chopped
  • 2 cloves garlic, minced
  • 1 cup mushrooms, sliced
  • 3 tablespoons flour
  • 2 cups chicken or turkey broth
  • 1 cup milk or cream
  • 1/2 cup parmesan cheese, grated
  • 1/2 cup mozzarella cheese (optional)
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 tablespoon parsley (optional)

Instructions

  1. Cook the pasta according to package instructions until al dente. Drain and set aside.
  2. In a large skillet, melt butter over medium heat. Add chopped onion and cook until softened, then add garlic and cook briefly.
  3. Add sliced mushrooms and sauté until tender and moisture has evaporated.
  4. Sprinkle flour over the mixture and stir to form a roux.
  5. Gradually add broth and milk, stirring constantly until a smooth, creamy sauce forms.
  6. Stir in cooked turkey, season with salt, pepper, and parsley, and simmer until slightly thickened.
  7. Combine cooked pasta with the sauce and mix well.
  8. Transfer to a greased baking dish and top with parmesan and mozzarella cheese.
  9. Bake at 375°F (190°C) for 25–30 minutes until bubbly and golden on top.
  10. Let cool slightly before serving.

Notes

  • Substitute turkey with chicken or tuna if desired.
  • Add vegetables like peas, spinach, or broccoli for extra nutrition.
  • Use different cheeses such as cheddar or Gruyère for a richer flavor.
  • Top with buttered breadcrumbs for a crunchy finish.
  • Add a splash of milk when reheating to keep the sauce creamy.

Nutrition

  • Serving Size: 1 serving
  • Calories: 450 kcal
  • Sugar: 5 g
  • Sodium: 650 mg
  • Fat: 18 g
  • Saturated Fat: 9 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 45 g
  • Fiber: 3 g
  • Protein: 25 g
  • Cholesterol: 75 mg
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