Chicken Tetrazzini (Creamy, Cheesy, and Crowd-Pleasing)
This Chicken Tetrazzini is a rich, creamy pasta bake loaded with tender chicken, earthy mushrooms, and a golden, bubbly cheese topping. It is the ultimate comfort food casserole that works just as well for weeknight dinners as it does for feeding a holiday crowd.
The Creamiest Chicken Tetrazzini You Will Ever Make
If there is one casserole that earns a permanent spot in your dinner rotation, it is Chicken Tetrazzini. Silky pasta, tender chicken, earthy mushrooms, and a rich, cheesy sauce baked until golden and bubbly underneath a crispy panko crust. It is the kind of dish that makes the whole house smell incredible and has everyone at the table asking for seconds before they have even finished their first plate.
This is classic American comfort food at its very best. Whether you are cooking it from scratch on a Sunday afternoon or pulling it together with leftover rotisserie chicken on a Tuesday night, this recipe is forgiving, flexible, and completely foolproof.
Why This Recipe Works So Well
A lot of Chicken Tetrazzini recipes rely on canned cream of mushroom soup as a shortcut. And while that version has its fans, making your own silky sauce from scratch takes only a few extra minutes and produces a result that is genuinely on a different level. The sauce is built from a simple butter and flour roux, enriched with chicken broth, whole milk, and a scoop of sour cream for that subtle tang that keeps it from feeling heavy.
The mushrooms are browned separately before they go into the mix. This step is worth it. Deeply golden, slightly caramelized mushrooms add a savory depth that raw or steamed mushrooms simply cannot match.
Chef's Tip: Do not crowd the mushrooms in the pan. Give them space and resist the urge to stir too soon. A good sear is what gives them that rich, nutty flavor that elevates the whole casserole.
Great Tools Make a Great Casserole
For a baked pasta dish like this, a heavy-duty 9x13 baking dish and a wide, deep skillet for building the sauce are the two things that make the biggest difference. Using the right pan means your sauce comes together smoothly and your casserole bakes evenly without dried-out edges.
The Leftover Turkey Connection
If you have ever found yourself with a mountain of leftover turkey after Thanksgiving and no idea what to do with it, this is your answer. Turkey Tetrazzini, sometimes called a Turketti Casserole, is one of the most beloved Thanksgiving leftover recipes for a reason. You get all the same creamy, cheesy, pasta-baked goodness with a slightly richer, more savory flavor from the turkey.
Many families actually prefer the turkey version year-round, and if you have ever searched for Turkey Linguine, One-Pot Turkey Tetrazzini, or a Taste of Home Turkey Tetrazzini Recipe, the core technique is exactly the same as what you see here. Just swap the chicken for an equal amount of shredded cooked turkey and proceed as directed.
Tips for the Best Results
- Undercook the pasta. Pull it from the water 1 to 2 minutes before it reaches al dente. It will finish cooking in the oven and absorb some of the sauce, so starting with fully cooked pasta leads to mushy results.
- Season in layers. Taste and adjust the sauce before it goes into the baking dish. A casserole that tastes slightly underseasoned at the sauce stage will taste even more flat after baking.
- Do not skip the panko topping. That golden, crunchy crust on top is what separates a great tetrazzini from a good one. Toss the breadcrumbs with just a drizzle of olive oil before scattering them on top.
- Rest before serving. Five minutes out of the oven gives the sauce a chance to settle and thicken slightly, making it much easier to serve cleanly.
Make It Ahead: This casserole is a dream for meal prep. Assemble it the night before, refrigerate it covered, and bake it fresh the next day. Just add the breadcrumb topping right before it goes into the oven.
Ready to dig in? Here is everything you need to make this creamy, bubbly, utterly satisfying Chicken Tetrazzini from scratch:
Chicken Tetrazzini (Creamy, Cheesy, and Crowd-Pleasing)
This Chicken Tetrazzini is a rich, creamy pasta bake loaded with tender chicken, earthy mushrooms, and a golden, bubbly cheese topping. It is the ultimate comfort food casserole that works just as well for weeknight dinners as it does for feeding a holiday crowd.
Ingredients
- 12 oz spaghetti or linguine, broken in half
- 3 cups cooked chicken breast, shredded or cubed, rotisserie chicken works great
- 4 tbsp unsalted butter, divided
- 1 yellow onion, finely diced
- 3 garlic cloves, minced
- 8 oz cremini mushrooms, sliced
- 3/8 cups all-purpose flour
- 2 cups chicken broth, low sodium preferred
- 1 cups whole milk
- 1/2 cups sour cream, full fat
- 1 cups frozen peas, no need to thaw
- 1 cups shredded Parmesan cheese, divided
- 1 cups shredded mozzarella cheese
- 1/2 cups dry white wine, optional, can substitute with extra broth
- 1 tsp salt, plus more to taste
- 1/2 tsp black pepper, freshly ground
- 1/2 tsp garlic powder
- 1/2 tsp Italian seasoning
- 1/2 cups panko breadcrumbs, for topping
- 1 tbsp olive oil, for topping
Instruction
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 salted boiling water until just shy of al dente, about 1 to 2 minutes less than 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 sliced mushrooms and cook undisturbed for 3 to 4 minutes until golden. Stir, season lightly with salt, and cook another 2 minutes. Transfer mushrooms to a plate.
In the same pan, melt the remaining 2 tablespoons of butter over medium heat. Add the diced onion and cook for 3 to 4 minutes until softened. Add the minced garlic and cook for 30 seconds until fragrant.
Sprinkle the flour over the onion and garlic mixture and stir constantly for 1 to 2 minutes to cook out the raw flour taste.
If using, pour in the white wine and stir to deglaze the pan, scraping up any browned bits. Let it bubble for 1 minute. Then slowly whisk in the chicken broth and milk, a little at a time, until the sauce is smooth.
Bring the sauce to a gentle simmer, stirring frequently, until it thickens enough to coat the back of a spoon, about 4 to 5 minutes. Remove from heat.
Stir in the sour cream, garlic powder, Italian seasoning, salt, and black pepper. Add 0.75 cups of the Parmesan cheese and stir until melted.
Add the cooked pasta, shredded chicken, sauteed mushrooms, and frozen peas to the sauce. Toss everything together until well coated.
Transfer the mixture to the prepared baking dish and spread it evenly. Top with the mozzarella and remaining Parmesan.
In a small bowl, stir together the panko breadcrumbs and olive oil. Scatter evenly over the top of the casserole.
Bake uncovered for 25 to 30 minutes until the top is golden and bubbly. Let rest for 5 minutes before serving.
Equipment
- 9x13-inch baking dish
- Large pot for boiling pasta
- Large oven-safe skillet or Dutch oven
- Whisk
- Colander
- Wooden spoon or spatula
- Measuring cups and spoons
Notes
Serving, Storing, and Variations
Serving suggestions: This casserole is hearty enough to be a full meal on its own, but a simple green salad and some crusty garlic bread on the side make it feel like a proper dinner party spread.
Storage: Leftovers keep in an airtight container in the refrigerator for up to 4 days. Reheat with a splash of milk or broth to revive the creamy sauce. The casserole also freezes well for up to 3 months. For best texture, freeze it before baking, thaw overnight in the fridge, then bake as directed.
Variations to try:
- Turkey Tetrazzini: Swap in shredded leftover turkey for the chicken. Perfect for post-Thanksgiving cooking.
- Vegetarian version: Leave out the meat and double the mushrooms, adding a handful of spinach or sun-dried tomatoes for extra depth.
- Spicy kick: Stir in a pinch of red pepper flakes or a few dashes of hot sauce into the cream sauce before baking.
However you make it, this Chicken Tetrazzini is the kind of recipe that earns a handwritten card in your recipe box. It is warm, generous, and guaranteed to bring people back to the table.
