Betty Crocker's Chicken Tetrazzini Recipe: One-Pan Creamy Mushroom Masterpiece

Betty Crocker's creamy Chicken Tetrazzini recipe delivers that nostalgic comfort food experience with restaurant-quality depth in one pan. Growing up in Georgia, I learned how creamy casseroles bring families together, and this version—with tender chicken, mushrooms, and rich sauce—is the perfect modern twist on a classic.

The secret lies in layering flavors through careful sautéing and baking, ensuring every bite is velvety and satisfying.

This foolproof recipe combines juicy chicken, al dente pasta, and earthy mushrooms in a creamy sauce that's both indulgent and balanced. Unlike many casseroles, it requires minimal prep—just 15 minutes of assembly before baking—and delivers a dish that's hearty enough for a family dinner but elegant enough for company.

The key is browning the chicken and mushrooms first to build deep, savory notes that the creamy sauce enhances beautifully.

What you'll end up with is a golden-brown masterpiece with tender chicken, perfectly cooked pasta, and a sauce so creamy it coats every ingredient.

The aroma alone will have everyone gathered around the table, and the first bite delivers that perfect harmony of textures—creamy sauce, tender chicken, and slightly crispy edges. This is comfort food at its finest, made even better by the simplicity of one-pan cooking.

Serve with a crisp green salad or steamed vegetables to balance the richness, and pair with a glass of Chardonnay for the full dining experience. The leftovers reheat beautifully, making this an ideal recipe for meal prep or feeding a crowd.

Let's bring this classic back to your kitchen with precision and care.

Ingredients for chicken tetrazzini betty crocker

Sixteen ingredients for a creamy, nostalgic masterpiece that brings restaurant-quality comfort to your table.

The chicken breast is the foundation—look for plump, uniform pieces at the grocery store's meat counter, and ask for them to be cut into 1-inch cubes. Costco or Whole Foods often have pre-cut options that save time. For mushrooms, white buttons are standard, but cremini or baby bella add depth. The fettuccine should be al dente when cooked, so test a piece early. Heavy cream is non-negotiable here—full-fat delivers the richest texture. If you're using store-bought chicken broth, low-sodium versions prevent over-salting later. The white wine should be dry, not sweet—Chardonnay or Sauvignon Blanc from a Trader Joe's or Total Wine selection works perfectly.

No white wine? Extra chicken broth with a splash of lemon juice mimics the acidity. Fresh thyme is ideal, but dried works at one-third the amount. The Parmesan must be freshly grated from a block—pre-grated clumps and loses flavor. For the shallots, substitute 3 tbsp finely chopped yellow onion if needed. The butter should be cold when adding to the pan—this creates a better roux. If you're short on time, pre-cook the chicken and mushrooms separately and assemble cold, then bake. The flour is for thickening, but cornstarch works too at half the amount for a glossier finish.

This casserole reheats beautifully—cover with foil and bake at 350°F for 15 minutes to restore creaminess. Leftovers keep 4-5 days in the fridge, and portions freeze for 3 months. I always make a double batch—one for dinner, one for lunches. Store in airtight containers with a layer of foil over the sauce to prevent drying. The sauce thickens as it cools, so stir in a splash of warm milk or broth if it seems too stiff when reheating.

Step-by-step instructions for betty Crocker's chicken tetrazzini

Here's the method for a rich, creamy mushroom masterpiece that delivers restaurant-quality results in one pan.

Bring a large pot of water to a rolling boil and add 12 ounces fettuccine pasta. Cook the pasta 1 minute less than the package instructions specify for al dente texture. This ensures the pasta finishes cooking in the oven while absorbing the creamy sauce. Reserve 1 cup pasta water before draining—this starchy liquid is essential for creating a smooth, velvety sauce later.

While the pasta cooks, prepare your baking dish by greasing a 9x13-inch pan with 2 tablespoons unsalted butter. This prevents sticking and helps create a golden crust on the top layer. The pasta should be cooked until it still offers slight resistance when bitten—this prevents mushiness in the final dish.

In a large oven-safe skillet, heat 2 tablespoons unsalted butter over medium-high heat. Add the 2.5 pounds boneless, skinless chicken breast, cut into 1-inch cubes, and cook for 5-6 minutes until the chicken is golden brown on all sides and reaches an internal temperature of 165°F. Remove the chicken and set it aside on a plate.

In the same skillet, add 1 tablespoon unsalted butter and the 1.5 pounds white button mushrooms, sliced into ¼-inch pieces. Cook for 6-7 minutes until the mushrooms release their moisture and develop a golden color. Add the 2 minced shallots and 4 minced garlic cloves, cooking for 1-2 minutes until fragrant. You'll notice the mushrooms soften and the aromatics release their sweet, savory notes—this builds the flavor foundation for your dish.

Lower the heat to medium and sprinkle ¼ cup all-purpose flour evenly over the mushrooms. Stir constantly for 1-2 minutes until the flour turns golden brown and the mixture thickens slightly. This step, called roux-building, removes the raw flour taste and creates a smooth texture for your sauce.

Pour in the ½ cup dry white wine and scrape up any browned bits from the bottom of the pan. Let the wine simmer for 2-3 minutes until it reduces by half. Add the 1.5 cups heavy cream and 1.5 cups chicken broth, stirring constantly. Bring the mixture to a gentle simmer and let it cook for 3-4 minutes until it thickens slightly. Season with 1.5 teaspoons kosher salt, ½ teaspoon ground black pepper, and 1 teaspoon dried thyme. Here's where the rich, creamy texture begins to form—this is the heart of your dish.

Return the cooked chicken to the skillet and stir gently to coat in the sauce. Add the drained fettuccine pasta and toss everything together until the pasta is evenly coated. Transfer the entire mixture to the prepared 9x13-inch baking dish and sprinkle the top with ½ cup freshly grated parmesan cheese. The cheese will melt into a golden, flavorful crust during baking.

Cover the dish with aluminum foil and bake in a preheated 375°F oven for 20 minutes. Remove the foil and bake for an additional 10-15 minutes until the top is golden brown and bubbly. The creamy sauce should coat the pasta and chicken evenly, creating that luxurious texture you're after. The dish is ready when the edges are slightly crisp and the cheese has melted into a smooth layer.

Remove the tetrazzini from the oven and let it rest for 5-10 minutes before serving. This resting period allows the sauce to thicken slightly and the flavors to meld together. The dish should be hot and creamy, with each bite delivering tender chicken, earthy mushrooms, and a rich, velvety sauce.

Serve immediately with a side of garlic bread or a simple green salad. The creamy mushroom sauce will cling beautifully to the pasta, creating that signature tetrazzini texture. If the sauce appears too thick after resting, stir in 1-2 tablespoons reserved pasta water to achieve the perfect consistency. Each serving delivers a perfect balance of protein, vegetables, and creamy indulgence in every bite.

Storing and reheating this dish

Fridge Storage Tips

Let your tetrazzini cool completely before transferring to an airtight container—I use glass Pyrex with snap-on lids—and store it in the fridge for up to 4 days. The creamy sauce actually improves overnight as the flavors meld together, becoming even richer.

To prevent a soggy texture, press plastic wrap directly on the surface before sealing the container. 💛

Freezer Prep

For longer storage, freeze individual portions in quart-sized freezer bags with 1 inch headspace to prevent expansion cracks. I recommend using flat bags from Reynolds—they stack neatly and thaw faster than containers.

Label with the date and freeze for up to 3 months. The sauce may thicken slightly after freezing, so plan to add 1-2 tablespoons of warm water or broth when reheating. ❄️

Stovetop Reheating

My preferred method is stovetop reheating to maintain that signature creamy texture. Transfer portions to a heavy-bottomed pot, add ¼ cup chicken broth, and heat over medium-low heat for 10-15 minutes, stirring occasionally.

The low heat prevents the sauce from breaking or becoming grainy. Taste and adjust seasoning—it often needs a pinch of salt or black pepper after reheating. 🔥

Microwave Revival

For quick lunches, microwave individual servings on 50% power for 3-4 minutes, stirring halfway. Cover loosely with a damp paper towel to retain moisture. If the sauce looks too thick, add 1 tablespoon of warm water or milk and stir until smooth.

Avoid high power settings—they can make the sauce rubbery. 💡

Oven Refresh

For a restaurant-quality finish, cover the dish with aluminum foil and bake at 350°F for 15-20 minutes until heated through. The foil traps steam, restoring that creamy, velvety texture.

This method works best for larger batches or when serving to a crowd. The golden crust forms again, making it look (and taste) freshly made. 🌟

Sauce Rescue

If your reheated tetrazzini seems too thick, stir in 1-2 tablespoons of reserved pasta water or warm chicken broth until you reach that perfect, clingy consistency. For extra richness, add a dash of heavy cream or a sprinkle of Parmesan cheese on top.

Honestly, I've salvaged many a dried-out casserole this way—don't let leftovers go to waste! 💪

Frequently asked questions