
This Chicken Tetrazzini is the ultimate creamy, cheesy pasta bake loaded with tender chicken, mushrooms, and a rich homemade sauce. Perfect for weeknight dinners, potlucks, or using up leftover turkey.

If comfort food had a hall of fame, Chicken Tetrazzini would have a permanent spot near the top. This bubbly, golden-topped pasta bake has been a staple of American home cooking for over a century, and once you taste a properly made version, it is not hard to understand why. Tender pasta coated in a silky, savory cream sauce, loaded with juicy chicken, earthy mushrooms, and finished with a crispy Parmesan breadcrumb crust. Every bite is warm, rich, and deeply satisfying.
This is the kind of dish that disappears fast at potlucks, earns you requests for the recipe at family dinners, and turns a quiet Tuesday night into something that feels genuinely special.
A lot of tetrazzini recipes lean on canned cream of mushroom soup as a shortcut. And while there is nothing wrong with that approach on a busy weeknight, a from-scratch sauce takes only about 10 extra minutes and makes an enormous difference. The homemade bechamel base gives you full control over seasoning, richness, and texture in a way that no canned product can match.
A few other things that make this version stand out:
Chef's Tip: This recipe is an outstanding vehicle for leftover Thanksgiving turkey. Simply swap the chicken for an equal amount of shredded turkey and follow the recipe exactly as written. It is one of the best turkey linguine casseroles you will find, rivaling any Taste of Home turkey tetrazzini recipe you have come across.
For a dish like this, a good heavy-bottomed skillet or Dutch oven that goes from stovetop to oven is a genuine game-changer. It means fewer dishes and better heat distribution for a sauce that turns out smooth every time. Using freshly grated Parmesan rather than pre-shredded also makes a noticeable difference in how the cheese melts into the sauce.
Chicken Tetrazzini is named after Luisa Tetrazzini, a celebrated Italian opera soprano who was enormously popular in the early 1900s. The dish was reportedly created in her honor by a San Francisco chef, and it has been a beloved American classic ever since. Over the decades it has evolved into dozens of regional variations, from one-pot turkey tetrazzini to turketti casserole (a fun mashup of turkey and spaghetti), to lighter weeknight versions built around whatever protein is left in the fridge.
What every version shares is that same core appeal: pasta, protein, creamy sauce, melted cheese, and a golden crust. It is endlessly adaptable and reliably crowd-pleasing.
Ready to bring this classic to your table? Here is everything you need:

This Chicken Tetrazzini is the ultimate creamy, cheesy pasta bake loaded with tender chicken, mushrooms, and a rich homemade sauce. Perfect for weeknight dinners, potlucks, or using up leftover turkey.
Preheat your oven to 375 degrees F (190 degrees C). Grease a 9x13-inch baking dish and set aside.
Cook the spaghetti or linguine in a large pot of well-salted boiling water until just shy of al dente, about 1-2 minutes less than the package directions. Drain and set aside.
In a large oven-safe skillet or Dutch oven, melt 2 tablespoons of butter over medium-high heat. Add the mushrooms in a single layer and cook undisturbed for 3-4 minutes until golden brown. Stir, season lightly with salt and pepper, and cook 2 more minutes. Remove mushrooms to a plate and set aside.
In the same skillet, melt the remaining 2 tablespoons of butter over medium heat. Add the diced onion and cook for 4-5 minutes until softened. Add the garlic and cook for 1 minute until fragrant.
Sprinkle the flour over the onion mixture and whisk constantly for 1-2 minutes to cook out the raw flour taste.
If using sherry or white wine, pour it in now and whisk until absorbed, about 30 seconds.
Gradually pour in the chicken broth while whisking continuously to prevent lumps. Then add the milk and continue whisking. Bring the sauce to a gentle simmer and cook for 3-4 minutes, stirring often, until it thickens enough to coat the back of a spoon.
Remove the skillet from the heat. Stir in the sour cream, three-quarters of the Parmesan, and three-quarters of the mozzarella until smooth and melted. Taste and adjust seasoning with salt, pepper, and garlic powder.
Add the cooked pasta, shredded chicken, sauteed mushrooms, and peas to the sauce. Toss everything together until evenly coated. Transfer the mixture to the prepared baking dish if not already in an oven-safe pan.
In a small bowl, mix the panko breadcrumbs with the remaining Parmesan and a small drizzle of olive oil or melted butter. Scatter the breadcrumb mixture evenly over the top of the casserole, then sprinkle the remaining mozzarella over everything.
Bake uncovered for 25-30 minutes until the top is golden and bubbly and the edges are gently sizzling.
Let the casserole rest for 5-10 minutes before serving. Garnish generously with fresh chopped parsley.
Chicken Tetrazzini is a full meal on its own, but it pairs beautifully with a simple green salad, roasted broccoli, or some warm crusty bread to mop up the extra sauce.
For storage, leftovers keep in an airtight container in the refrigerator for up to 4 days and reheat wonderfully. Stir in a splash of chicken broth when reheating to bring the sauce back to life. You can also freeze the assembled, unbaked casserole for up to 2 months making it one of the most practical make-ahead dinners in your repertoire.
However you serve it, this is the kind of recipe that earns a permanent spot in your rotation.