Recipe Chicken Tetrazzini Southern Living: Creamy Noodle Casserole with Herbed Breadcrumbs

This creamy casserole brings classic comfort to your table with tender chicken, creamy sauce, and al dente noodles under golden breadcrumbs. Southern Living’s traditional approach shines here.

Ready in under an hour, this dish balances rich flavors with a crisp topping. Perfect for family dinners or potlucks, it’s a timeless crowd-pleaser.

Ingredients for Recipe Chicken Tetrazzini Southern Living

Classic comfort in a dish with tender chicken, creamy sauce, and crispy breadcrumb topping.

The chicken sets the stage here. Bone-in, skin-on thighs would add even more flavor (just remove skin before shredding), but boneless breasts work great for a quicker weeknight version. Costco has good deals on bulk chicken, or grab Perdue from your regular supermarket. For the noodles, Barilla spaghetti holds up well to the creamy sauce without getting mushy.

No whole milk? Half-and-half works in a pinch (just reduce the heavy cream slightly). Swap cremini for shiitake mushrooms if you want a deeper umami taste. Out of Panko? Crushed saltines or Ritz crackers make a great substitute for the topping. The Parmesan needs to be freshly grated—pre-shredded has anti-caking agents that make the sauce grainy.

This casserole reheats like a dream—tastes even better the next day. Keeps 4-5 days in the fridge, freezes for 3 months (thaw overnight before reheating). Portion into squares for easy grab-and-go lunches.

Step-by-Step Instructions for Chicken Tetrazzini

Here’s the method that delivers that signature creamy texture and golden crunch every time.

Step 1: Prepare the Chicken and Noodles

Start by cooking the 1.5 lb chicken breast until fully done—poach it in the 2 cups chicken broth for extra flavor, or bake it at 375°F for 20-25 minutes. Once cool enough to handle, shred it into bite-sized pieces. I like to use two forks for this; it gives you nice, even shreds that distribute well in the casserole.

While the chicken cooks, boil the 8 oz spaghetti noodles in salted water for 1 minute less than package directions. You want them slightly underdone since they’ll finish cooking in the oven. Drain and set aside—they’ll be ready when you are.

Step 2: Create the Creamy Roux Base

In a large saucepan, melt 0.5 cup unsalted butter over medium heat. Add the 1 whole yellow onion (finely diced) and cook for 3-4 minutes until softened. Stir in the 8 oz mushrooms (sliced) and cook until they release their moisture and turn golden brown.

Add the 3 cloves garlic cloves (minced) and cook for 30 seconds until fragrant. Then whisk in the 0.5 cup all-purpose flour to form a roux. Cook this for 1-2 minutes to remove the raw flour taste—you’ll notice it turns a light golden color.

Step 3: Build the Rich, Creamy Sauce

Gradually whisk in the 2 cups whole milk and remaining chicken broth (if you used some for poaching). Bring to a simmer, stirring constantly, until the mixture thickens enough to coat the back of a spoon. This usually takes 5-7 minutes.

Reduce heat to low and stir in the 0.5 cup heavy cream, 0.5 cup parmesan cheese, 1 tsp salt, 0.5 tsp black pepper, and 1 tsp dried thyme. I rub the thyme between my fingers as I add it to release its full aroma. Taste and adjust seasoning if needed.

Step 4: Assemble and Top with Herbed Breadcrumbs

In a large bowl, combine the cooked noodles, shredded chicken, and creamy sauce. Stir until everything is well coated. Transfer to a greased 9×13-inch baking dish. The mixture should look rich and velvety—this is how you know you’ve got that signature creamy texture.

In a small bowl, melt the remaining unsalted butter (about 2 tablespoons) and toss with the 1 cup panko breadcrumbs until evenly moistened. Sprinkle this herbed breadcrumb mixture evenly over the top of the casserole.

Step 5: Bake to Golden Perfection

Bake at 375°F for 25-30 minutes until the casserole is bubbly and the breadcrumb topping is golden brown. You’ll see the edges start to get crispy—that’s your signal it’s ready.

Let it rest for 5-10 minutes before serving. This allows the sauce to set slightly, making it easier to serve clean portions. The top should have a beautiful golden crust, while the inside stays creamy and luscious.

Pro Cooking Tips for Perfect Results

Roux Perfection

Cook your roux for 1-2 minutes until golden—this removes the raw flour taste that can make your sauce gritty. I use a whisk and keep the heat at medium to prevent burning. A light golden color means you’re ready for liquids.

Sauce Consistency

Whisk constantly as you add the 2 cups whole milk and chicken broth. The sauce should coat the back of a spoon but still drizzle easily. If it’s too thick, add ¼ cup more broth. If too thin, simmer 2-3 minutes longer. 💡

Noodle Timing

Boil the 8 oz spaghetti for 1 minute less than package directions. They’ll finish cooking in the oven, preventing a mushy texture. Drain immediately and toss with a drizzle of oil to keep them from sticking together.

Breadcrumb Secret

For extra crispy topping, toast the 1 cup panko in a dry pan for 2-3 minutes before mixing with butter. I also add ½ tsp garlic powder for depth. This creates a topping that stays crunchy even after baking. 🔥

Baking Temperature

Bake at 375°F on the middle rack for even browning. Rotate the dish halfway through if your oven has hot spots. The casserole is done when the center bubbles and the top is deep golden brown.

Resting Time

Let it rest for 5-10 minutes after baking. This allows the sauce to thicken slightly, making it easier to serve clean portions. Skipping this step can lead to a runny casserole on the plate.

Frequently Asked Questions