Betty Crocker's Chicken Tetrazzini Recipe: Creamy Mushroom Sauce with Crispy Celery Crown

Betty Crocker's Chicken Tetrazzini delivers that nostalgic comfort food experience with a creamy mushroom sauce and crispy celery crown that always impresses. Growing up in small-town Georgia, I remember my grandmother making this dish for Sunday dinners—its rich, velvety texture and savory depth make it a classic for good reason.

The recipe balances tradition with modern convenience, whether you use pre-cooked chicken or a shortcut sauce base.

What sets this dish apart is the perfect harmony of tender chicken, earthy mushrooms, and crispy celery topping—each element playing its part. The sauce requires patience, but the result is worth it: a creamy, slightly tangy sauce that clings to every strand of pasta.

Meanwhile, the celery crown adds a satisfying crunch that contrasts beautifully with the softness below.

By the time it emerges from the oven, you'll have a dish that looks elegant enough for a dinner party but feels comforting enough for a weeknight.

The aroma alone will have everyone gathering around the table, and the first bite delivers that perfect balance of flavors—rich, savory, and just slightly tangy. This is the kind of recipe that transforms a simple meal into a memorable experience.

Serve with a crisp green salad and garlic bread to round out the plate. The crispy celery crown alone makes this dish worth mastering—it's the kind of technique that elevates a classic from good to extraordinary. Let's get cooking!

Ingredients for chicken tetrazzini betty crocker

Sixteen ingredients. One unforgettable dish. Creamy, crispy, and nostalgic all at once.

The mushrooms and celery are your flavor anchors here. Baby bella mushrooms add meatier texture, but cremini or button work too. For the celery crown, use fresh, crisp stalks—the ones with vibrant green tops. If you're short on time, pre-sliced mushrooms from the salad bar are a lifesaver. The Parmesan? Grate it yourself from a wedge—pre-grated gets clumpy and lacks flavor. And that dry sherry? Trader Joe's or a well-stocked liquor store usually has a decent bottle for under $10.

No sherry? White wine or even extra chicken broth works in a pinch. Fresh thyme? Dried at one-third the amount gets you close. Short on butter? Olive oil in equal parts keeps it creamy. The breadcrumbs can be seasoned with garlic powder if you want extra flavor—just toss them with a pinch of salt and pepper before topping. And if you're feeling fancy, toasted breadcrumbs add that restaurant-quality crunch. The chicken can be rotisserie for a shortcut, but homemade or store-bought diced chicken both work perfectly.

This dish reheats beautifully—3-4 minutes at 350°F gets it creamy again. The celery crown stays crispy if you reheat it separately. Keeps 3 days in the fridge, freezes for 2 months. I always double the celery crown recipe—it's the best part and disappears first. Store leftovers in a glass baking dish so you can reheat straight from the oven.

Step-by-step instructions for creamy chicken tetrazzini

Here's how to make this rich, creamy pasta dish with crispy celery crowns—no shortcuts, just flavor.

Bring a large pot of salted water to a rolling boil. Add the 12 oz fettuccine pasta and cook until 1 minute before the package instructions for al dente. You want it firm enough to hold its shape but still tender. Reserve 1 cup of the pasta water before draining—this starchy liquid is key for a creamy sauce later.

While the pasta cooks, prepare the celery crowns by slicing the 3 whole celery stalks into thin rounds. Set them aside on a paper towel-lined plate. The celery will crisp up beautifully when we toast it later, adding texture contrast to the creamy sauce.

In a large skillet, melt 2 tbsp unsalted butter over medium heat. Add the 16 oz sliced fresh white mushrooms and cook for 5-6 minutes until they release their moisture and begin to brown. You're looking for golden edges—not mushy mushrooms.

Push the mushrooms to one side of the pan and add 2 tbsp unsalted butter to the empty space. Toss in the diced yellow onion and cook for 3 minutes until softened. Add the 4 cloves minced garlic cloves and 1 tsp dried thyme, cooking for 30 seconds until fragrant. This aromatic base forms the flavor foundation for the entire dish.

Lower the heat to medium-low and sprinkle the 2 tbsp all-purpose flour over the mushrooms and onions. Stir constantly for 1-2 minutes until the flour is fully incorporated and the mixture turns slightly thickened.

Gradually pour in the 1 cup heavy cream and 1 cup chicken broth, whisking continuously to prevent lumps. Add the 2 tbsp dry sherry and bring the mixture to a gentle simmer. Let it cook for 5-7 minutes until it thickens enough to coat the back of a spoon. If it gets too thick, add 1-2 tablespoons of the reserved pasta water to loosen it.

Add the 3 cups diced cooked chicken breast and 0.5 cup freshly grated parmesan cheese to the sauce. Stir gently to combine, letting the chicken warm through for 2-3 minutes. Season with 1.5 tsp salt and 0.5 tsp black pepper. The sauce should be rich but not overly thick—if it's too heavy, add more reserved pasta water.

Now it's time for the crispy celery crowns. In a separate skillet, melt 2 tbsp unsalted butter over medium heat. Add the sliced celery and cook for 3-4 minutes until golden brown and crispy. Toss in the 0.5 cup breadcrumbs and stir for 1 minute until toasted and crunchy.

Preheat your oven to 375°F. In a large baking dish, combine the pasta, chicken mixture, and sauce, stirring gently to coat the noodles evenly. Top with the crispy celery crowns and additional 0.25 cup grated parmesan cheese for extra richness.

Bake uncovered for 15-20 minutes until the top is golden brown and bubbly. The celery crowns should be extra crispy, while the pasta underneath stays creamy and tender. Let it rest for 5 minutes before serving to allow the flavors to meld together.

Regional styles of chicken tetrazzini betty crocker

Classic Midwestern Style

This is the version I grew up with in Georgia—simple, hearty, and built for family gatherings. The key difference here is using rotisserie chicken instead of diced breast for convenience, while keeping the same rich mushroom sauce.

I like to add 1 tbsp Dijon mustard to the sauce for a subtle tang that cuts through the creaminess. Serve with cornbread on the side for that Southern touch. 🍗

Italian-Inspired Twist

For a more refined take, swap the sherry for ½ cup dry white wine and add ¼ cup sun-dried tomatoes (chopped) to the sauce. Use penne pasta instead of fettuccine and top with toasted pine nuts for crunch. This version feels more elegant but keeps the same comforting essence. 🍷

Low-Carb Adaptation

Here's where I get creative—replace the pasta with shredded chicken and cauliflower rice (about 4 cups total). Keep the same creamy sauce but reduce the heavy cream to ½ cup and use light cream instead.

Top with crispy parmesan crisps (store-bought or homemade) for a keto-friendly version that still delivers that satisfying texture. 🥬

Vegetarian Version

Swap the chicken for chickpeas (drained and rinsed) and mushroom stems (chopped finely). Add 1 tsp smoked paprika to the sauce for depth. Use whole wheat fettuccine for extra fiber. This version keeps the creamy, comforting profile while making it plant-based. The celery crown stays the same—it's the star! 🌱

Southern BBQ Fusion

For a smoky twist, stir 2 tbsp BBQ sauce (like Sweet Baby Ray's) into the finished sauce before baking. Top with crumbled bacon instead of breadcrumbs, and add pickled jalapeños for heat. This version has a bold, tangy kick that pairs perfectly with collard greens on the side. 🔥

Quick Weeknight Hack

When I'm short on time, I use pre-cooked chicken tetrazzini mix (like Betty Crocker's) and just add extra mushrooms and fresh herbs at the end. Skip the celery crown and sprinkle crushed Ritz crackers on top instead—they toast up nicely.

This version cuts prep time in half but still tastes amazing. ⏰

Frequently asked questions