This Easy Turkey Tetrazzini Recipe is a creamy, comforting casserole made with 12 ounces of pasta, cooked turkey, mushrooms, peas, Parmesan, mozzarella, and a homemade broth-and-cream sauce. It takes about 20–25 minutes to prepare and 35–45 minutes to cook and bake, making a satisfying dinner for 6–8 servings in approximately one hour.
Every forkful brings together tender pasta, savory turkey, earthy mushrooms, sweet peas, and a bubbling cheese topping with crisp breadcrumbs. It is an especially delicious way to use leftover roasted turkey, including turkey prepared with tips from our slow cooker turkey recipe.
Jump to RecipeWhy You’ll Love This Recipe
Turkey tetrazzini is the kind of dinner that turns simple leftovers into a rich, family-friendly meal. The homemade white sauce is creamy without relying on condensed soup, while broth adds savory depth and keeps the casserole from tasting too heavy.
The recipe is flexible enough for a weeknight but comforting enough for a holiday leftovers menu. Spaghetti and linguine both work beautifully, and the oven transforms the saucy pasta into a bubbling casserole with a crisp, cheesy top.
It also offers a practical balance of textures. Tender turkey and pasta make the dish filling, peas add bright color and a little sweetness, mushrooms bring a meaty bite, and breadcrumbs provide a delicate crunch against the creamy center.
For another family-friendly skillet dinner with pasta and plenty of cheese, you may also enjoy our easy skillet lasagna.
Ingredients You’ll Need
Gather the ingredients before cooking so the sauce and pasta can come together without delay. The measurements below make 6–8 generous servings in a 9-by-13-inch baking dish.
- Pasta: Use 12 ounces of spaghetti or linguine. Cook it just shy of al dente so it remains pleasantly firm after baking.
- Vegetables: Eight ounces of sliced mushrooms, one finely chopped small yellow onion, two minced garlic cloves, and one cup of thawed frozen peas create a savory, colorful filling.
- Sauce ingredients: Four tablespoons of unsalted butter, 1/4 cup all-purpose flour, 2 cups chicken or turkey broth, and 1 cup heavy cream or whole milk form the smooth sauce.
- Turkey: Use 3 cups of cooked turkey cut into bite-size pieces. Leftover roasted turkey is particularly flavorful, but any cooked turkey works.
- Cheese and topping: You will need 1/2 cup grated Parmesan, 1 cup shredded mozzarella, and 1/2 cup plain dry breadcrumbs for the creamy filling and golden finish.
- Seasoning: A 1/2 teaspoon of kosher salt and 1/4 teaspoon of black pepper round out the sauce.
Heavy cream creates the richest result, while whole milk makes a slightly lighter sauce. If your turkey is especially lean or the mixture seems dry, keep a little extra broth or milk nearby for adjustment.
If you enjoy cozy, cheese-filled breakfasts as much as baked pasta dinners, our easy cheesy omelet is another simple recipe to keep in your rotation.
How to Make It Step-by-Step
Step 1: Heat the oven to 350°F (175°C), then grease a 9-by-13-inch baking dish. Bring a large pot of salted water to a boil and cook the spaghetti or linguine until just shy of al dente, following the package timing as a guide.
Step 2: Drain the pasta thoroughly, but do not rinse it. The slightly undercooked noodles will continue absorbing sauce and finishing in the oven, which helps prevent a soft, mushy casserole.
Step 3: Melt 2 tablespoons of the butter in a large skillet over medium heat. Add the sliced mushrooms and chopped onion, then sauté for about 5–7 minutes, stirring occasionally, until the vegetables soften and the mushrooms release their moisture.
Step 4: Add the minced garlic and cook for 30 seconds, just until fragrant. Garlic cooks quickly, so this brief time keeps its flavor warm and savory without letting it become bitter.
Step 5: Add the remaining 2 tablespoons of butter to the skillet. Once melted, stir in the flour and cook for about 1 minute, stirring constantly, to create a smooth base for the sauce.
Step 6: Gradually whisk in the broth and then the heavy cream or whole milk. Keep stirring as the mixture cooks for 3–5 minutes, until it thickens enough to coat the back of a spoon, then season with kosher salt and black pepper.
Step 7: Stir the bite-size turkey, thawed peas, 1/4 cup of Parmesan, and drained pasta into the skillet. Fold gently until every strand is coated and the turkey and vegetables are distributed evenly.
Step 8: Pour the mixture into the greased baking dish and spread it into an even layer. Sprinkle the top with the mozzarella, remaining Parmesan, and dry breadcrumbs so each serving gets creamy cheese and a crisp finish.
Step 9: Bake the casserole uncovered at 350°F for 25–30 minutes, until the edges are bubbling and the center is hot. If you prefer a darker topping, broil briefly at the end while watching closely so the breadcrumbs do not burn.
Step 10: Remove the tetrazzini from the oven and let it rest for 5–10 minutes before serving. The short rest helps the sauce set and makes it easier to lift neat, hearty portions from the dish.
Pro Tips for the Best Tetrazzini
The most important detail is to avoid fully cooking the pasta before it enters the oven. It should be firm enough to resist a little when bitten because it will absorb sauce during the 25–30 minute bake.
Whisk the broth and dairy in gradually rather than adding everything at once. This helps the flour blend smoothly and gives you a thick, velvety sauce instead of one with lumps.
- Slice vegetables evenly: Uniform mushroom slices and finely chopped onion cook at the same rate.
- Use bite-size turkey: Smaller pieces distribute throughout the casserole and make each serving easier to eat.
- Watch the sauce consistency: It should be creamy and pourable before baking, not stiff or dry.
- Broil carefully: The cheese and breadcrumbs can brown quickly under high heat, so stay nearby.
- Rest before cutting: Five to ten minutes allows the filling to settle without becoming cold.
For a shortcut, some versions use a 10 3/4-ounce can of condensed cream of mushroom or cream of chicken soup mixed with approximately 1/2–1 cup milk. The homemade sauce in this recipe takes only a few extra minutes and lets you control the seasoning and texture.
Other popular additions include chopped celery, pimientos, or a small amount of dry white wine. They are optional variations, so keep the base recipe unchanged when you want a dependable, creamy turkey casserole.
Serving Suggestions
Serve turkey tetrazzini warm as a complete meal because the pasta, turkey, peas, and mushrooms already make it substantial. A crisp green salad or steamed broccoli adds freshness and contrast to the creamy baked pasta.
For a holiday leftovers spread, pair it with roasted vegetables, cranberry sauce, or a simple side of green beans. The savory sauce also welcomes a sprinkle of chopped parsley immediately before serving, although parsley is optional and not required in the ingredient list.
Because the topping is at its crispiest right after baking, spoon portions from the edge and center so everyone receives some golden breadcrumbs and melted cheese. Letting the casserole rest first keeps the serving intact rather than runny.
Save room for a bright, no-oven dessert such as this easy no-bake pineapple pie. Its cool fruit flavor is a pleasant finish after the warm, savory casserole.
Storage and Reheating
Cool leftovers promptly, cover the baking dish, and refrigerate them. Stored portions are convenient for lunches and quick dinners, and the flavors remain comforting after the first day.
Reheat individual servings gently until hot, adding a splash of broth or milk if the sauce has tightened. For a larger portion, cover the dish while warming so the pasta does not dry out, then uncover near the end if you want the topping to regain some crispness.
If you plan ahead, assemble the casserole close to baking time for the best pasta texture. If it sits before going into the oven, check that the mixture still looks moist and add a splash of broth or milk if needed.
After dinner, a fruity layered dessert can round out the meal; our pineapple lush cake offers a chilled, sweet contrast to this savory main dish.
Easy Turkey Tetrazzini Recipe
Ingredients
Method
- Heat the oven to 350°F (175°C) and grease a 9-by-13-inch baking dish. Cook the spaghetti or linguine in salted water until just shy of al dente, then drain well.
- Melt 2 tablespoons of butter in a large skillet over medium heat. Add the mushrooms and onion, sauté for 5–7 minutes, then stir in the garlic and cook for 30 seconds.
- Add the remaining 2 tablespoons of butter. Stir in the flour and cook for about 1 minute, stirring constantly.
- Gradually whisk in the broth and cream or whole milk. Cook for 3–5 minutes, stirring often, until the sauce thickens, then season with kosher salt and black pepper.
- Stir the turkey, peas, 1/4 cup Parmesan, and cooked pasta into the sauce. Mix gently until the pasta is evenly coated.
- Transfer the mixture to the greased baking dish. Sprinkle with mozzarella, the remaining Parmesan, and breadcrumbs.
- Bake uncovered at 350°F for 25–30 minutes, until hot and bubbling. Broil briefly at the end if you want a more deeply browned topping.
- Rest the casserole for 5–10 minutes before serving. This gives the creamy sauce time to settle around the pasta.
Notes
Final Thoughts
This Easy Turkey Tetrazzini Recipe delivers everything you want from a comforting baked dinner: creamy sauce, tender pasta, flavorful turkey, vegetables, bubbling cheese, and a crisp golden topping. With 20–25 minutes of preparation and a 350°F bake, it is a practical way to turn leftover turkey into a meal that feels planned rather than improvised.
Remember to cook the pasta just shy of al dente, whisk the sauce until thickened, and add a splash of broth or milk if the assembled casserole appears dry. Once it rests for 5–10 minutes, spoon it onto plates and enjoy a warm, satisfying classic that feeds 6–8 people.
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