Chicken Tettrazzini Recipe: Creamy Mushroom and Parmesan Pasta

This chicken tetrazzini delivers creamy comfort in every bite, with tender noodles, mushrooms, and parmesan in a velvety sauce.

I developed this version to capture the classic flavors without unnecessary complexity. The sauce comes together smoothly with a simple roux base, while the chicken and mushrooms add hearty texture.

What makes this dish special is the balance—rich enough to feel indulgent, but light enough for a weeknight meal. The parmesan adds depth without overpowering the other ingredients.

Serve with a sprinkle of fresh parsley and cracked black pepper. The result is always satisfying.

Ingredients for Chicken Tettrazzini

Creamy chicken, mushrooms, and parmesan create this velvety pasta dish with pantry staples and fresh ingredients.

The chicken sets the foundation here. Boneless, skinless breasts yield the most consistent texture when shredded—avoid pre-cooked rotisserie as it can dry out during baking. For mushrooms, cremini or baby bella offer deeper flavor than white button. Source your Parmesan from a specialty grocer like Whole Foods or Eataly—pre-grated lacks the melt and complexity of a freshly grated wedge.

Need to make this ahead? Undercook the pasta by 2 minutes—it’ll finish in the oven. No white wine? Additional chicken broth with a splash of lemon juice works in a pinch. For a lighter version, half-and-half instead of heavy cream reduces richness without sacrificing texture. Fresh parsley is ideal for garnish, but dried parsley flakes (at a 1:3 ratio) can substitute.

Assemble and refrigerate up to 24 hours before baking. Leftovers keep 4-5 days in the fridge or freeze for 3 months. Reheat covered with foil to prevent the top from drying out. The sauce thickens as it cools—this is normal and enhances the dish’s creamy character.

Step-by-Step Instructions for Chicken Tettrazzini

Master the technique for a velvety sauce and perfectly tender chicken in this classic dish.

Step 1: Cook and Shred the Chicken Breast

Poach the 1.5 lb Chicken Breast in simmering chicken broth for 12-15 minutes until the internal temperature reaches 165°F and the meat is no longer pink. This gentle cooking method keeps the chicken moist and infuses it with extra flavor from the broth.

Remove the chicken from the broth and let it cool slightly. Once cool enough to handle, shred it into bite-sized pieces using two forks. I prefer shredding to chopping for this dish as it creates a more elegant texture that blends beautifully with the pasta.

Step 2: Sauté Vegetables and Create the Roux

In a large Dutch oven, melt the 0.5 cup Unsalted Butter over medium heat. Add the finely diced yellow onion and cook for 3-4 minutes until translucent. Then add the 8 oz Cremini Mushrooms and cook for another 5 minutes until they release their moisture and begin to brown.

Stir in the 4 cloves Garlic Cloves and cook for 30 seconds until fragrant. Sprinkle the 0.5 cup All-Purpose Flour over the vegetables and stir constantly for 2 minutes to cook the raw flour taste out and create a smooth roux.

Step 3: Build the Creamy Sauce Base

Slowly whisk in the 2 cups Whole Milk and remaining chicken broth (after removing the poached chicken). Bring to a gentle simmer, stirring frequently, until the mixture thickens enough to coat the back of a spoon, about 5-7 minutes.

Pour in the 0.5 cup Dry White Wine and 0.5 cup Heavy Cream, then stir in 1.5 tsp Kosher Salt and 0.5 tsp Ground Black Pepper. Let the sauce simmer for 3 minutes to allow the flavors to meld and the alcohol to cook off.

Step 4: Combine All Components

Add the shredded chicken to the sauce along with the 12 oz Spaghetti Noodles (cooked al dente according to package instructions). Stir gently to combine, ensuring the pasta is fully coated. The noodles should be broken into thirds as specified, which makes them easier to eat and distribute evenly.

Remove from heat and stir in 1 cup of the 1.5 cups Parmesan Cheese, reserving the rest for garnish. The sauce should be creamy and luxurious, clinging to each strand of pasta. If the sauce is too thick, add a splash of warm milk to reach your desired consistency.

Step 5: Finish and Serve

Taste and adjust seasoning if needed. Transfer to a serving dish and top with the remaining 0.5 cup Parmesan Cheese and the 0.25 cup Fresh Parsley. The parsley adds a fresh, bright contrast to the rich, creamy dish.

Let the tettrazzini rest for 5 minutes before serving to allow the flavors to fully develop. The final dish should be creamy with a velvety texture, and each bite should be packed with the flavors of chicken, mushrooms, and parmesan.

Troubleshooting chicken tettrazzini

Sauce Too Thin

If your sauce hasn’t thickened after 7 minutes, create a cornstarch slurry with 1 tbsp cornstarch and 2 tbsp cold water. Whisk this into the simmering sauce and cook for an additional 2-3 minutes. The heat activates the cornstarch for a silky finish. 💡

Sauce Too Thick

When the sauce becomes glue-like, whisk in warm whole milk ¼ cup at a time until it reaches a pourable consistency. Avoid adding cold liquid, as it can cause the sauce to separate. I find this works better than broth for maintaining creaminess.

Lumpy Roux

If your roux looks clumpy after adding flour, don’t panic. Keep stirring over medium heat for a full 2 minutes—this cooks out the raw flour taste and smooths the mixture. A whisk helps break up stubborn lumps more effectively than a spoon.

Mushrooms Watery

Cremini mushrooms release moisture as they cook. To prevent a soggy dish, cook them in batches if needed, allowing each batch to brown before adding more. Pat them dry with a paper towel before slicing. This extra step removes excess liquid that could thin your sauce.

Pasta Overcooked

For perfect texture, undercook your spaghetti by 2 minutes before combining with the sauce. It’ll finish cooking in the hot sauce. Use 12 oz dried spaghetti broken into thirds for even distribution. Test for al dente texture before draining.

Bland Flavor

If the dish tastes flat, add ½ tsp salt and a splash of lemon juice to brighten the flavors. The acidity cuts through the richness. Also, ensure you’re using freshly grated parmesan—pre-grated lacks the depth of a wedge. 🌟

Frequently Asked Questions