Chicken Tetrazzini Betty Crocker Recipe: Crispy Celery-Topped Cheese Velout Magic

Betty Crocker’s chicken tetrazzini delivers that nostalgic, creamy comfort food magic we all crave—especially when crispy celery topping meets rich cheese velouté. 💛 Growing up in small-town Georgia, I remember my grandmother’s version simmering on the stove while the house filled with that unmistakable aroma.

This recipe captures that same warmth, just with a few modern refinements for foolproof results.

The secret lies in the sauce—a velvety blend of cream, chicken broth, and a touch of mustard that keeps the flavors balanced. You’ll start by sautéing chicken thighs until golden, then layer it with cooked fettuccine and that signature celery topping.

The celery adds a satisfying crunch that cuts through the richness, while the cheese melts into a golden, bubbling blanket.

Baking at 375°F for 20 minutes ensures the top gets perfectly golden and crispy, just like Betty Crocker intended. The result? A dish that’s creamy, cheesy, and packed with tender chicken—ideal for family dinners or potlucks.

This version stays true to the classic while making it easier to achieve that restaurant-quality finish at home.

Serve with a simple side salad or garlic bread to soak up every last bit of that velouté sauce. The leftovers reheat beautifully, too—just a quick stovetop warm-up to restore that creamy perfection. Here’s how to make it step by step.

Ingredients for chicken tetrazzini betty crocker

Six ingredients make the sauce, eight build the layers—just like Grandma used to make it.

The chicken thighs are the heart of this dish—bone-in, skin-on if you can find them, but boneless works fine. I grab mine from the Costco family pack when I'm feeding a crowd, but the regular supermarket package is perfect for this. Look for thighs with a good amount of marbling—they stay juicier during cooking. If you're using breasts instead, pound them to an even thickness so they cook through without drying out. The celery? Fresh is non-negotiable here—the crunch is what makes this dish sing, so skip the pre-shredded bagged stuff.

No heavy cream? Full-fat sour cream thinned with a splash of milk works in a pinch, though it won't be quite as velvety. Running low on chicken broth? Low-sodium beef or vegetable broth will do, but add an extra pinch of salt to balance. For the cheese, sharp cheddar gives the best melt and flavor, but a mix of cheddar and mozzarella works too. The mustard is key—Dijon adds depth, but yellow mustard in a squeeze bottle is fine if that's what you've got. And if you're worried about the celery topping getting soggy, toast it in the oven for 5 minutes before adding the cheese—trust me on this.

This dish tastes even better the next day—leftovers reheat beautifully, just cover with foil and warm in the oven at 350°F for 15 minutes. Store any uneaten portions in an airtight container for up to 4 days. For make-ahead prep, assemble the dish (without baking) and refrigerate overnight. The flavors meld even more overnight, and you can just pop it in the oven straight from the fridge. The celery topping will crisp up perfectly, no extra effort needed.

Step-by-step instructions for chicken tetrazzini

Here's how to create that perfect creamy, crispy-topped comfort dish every time.

Cut the 2.5 lb boneless, skinless chicken thighs into bite-sized pieces. Heat 0.25 cup butter in a large skillet over medium-high heat until melted. Add the chicken pieces and cook for 5-6 minutes, stirring occasionally, until they begin to brown on all sides. This gives them a nice head start on flavor.

Here's the thing—don't overcrowd the pan. Cook the chicken in batches if needed. Once the pieces are lightly browned, pour in 1.5 cups chicken broth and bring to a simmer. Reduce heat to medium-low, cover, and let it cook for 15-18 minutes until the chicken is fork-tender and nearly all the liquid has evaporated. You'll know it's ready when the chicken pulls apart easily and the juices run clear.

While the chicken simmers, bring a large pot of well-salted water to a rolling boil. Add the 12 oz fettuccine pasta and cook for 1 minute less than the package instructions specify—you want it al dente. The pasta should have a slight bite to it when you taste it. Reserve 1 cup pasta water before draining, then drain the pasta and set it aside.

I always save that pasta water because it's liquid gold for this recipe. It helps create the perfect creamy sauce later. Don't rinse the pasta—those starchy bits are what help the cheese sauce cling beautifully to every strand.

In the same skillet with the chicken, melt the remaining 0.25 cup butter over medium heat. Add the 2 tbsp all-purpose flour and whisk constantly for 1-2 minutes until the mixture turns a light golden color and smells nutty. This is your roux—the flavor foundation of your sauce.

Slowly pour in the 1 cup heavy cream while whisking continuously to prevent lumps from forming. Stir in the 1 tbsp Dijon mustard and let the mixture simmer for 3-4 minutes until it thickens slightly. Then add the 2 cups shredded cheddar cheese, stirring until completely melted and smooth. The sauce should coat the back of a spoon and look glossy.

Add the cooked fettuccine pasta and chicken to the skillet, tossing everything together gently. If the sauce seems too thick, add some of the reserved pasta water 1 tablespoon at a time until you reach a creamy consistency that coats the pasta beautifully. Season with 1.5 tsp salt and 0.5 tsp black pepper, then stir in the 3 minced garlic cloves and 1 tbsp dried parsley. Let the mixture simmer for 2-3 minutes so all the flavors meld together perfectly.

Preheat your oven's broiler to high. While the main mixture simmers, prepare the crispy celery topping. Thinly slice the 2 whole celery stalks into matchsticks. Spread the celery slices on a parchment-lined baking sheet in a single layer, making sure they don't overlap.

Broil the celery for 3-4 minutes until the edges turn golden brown and crispy. Watch it carefully—it burns quickly! Remove from the oven and set aside. Now here's where the magic happens: spoon the creamy chicken mixture into a greased 9x13-inch baking dish, spreading it evenly. Top with the crispy celery slices, pressing them gently into the cheese sauce.

Transfer the baking dish to a 425°F oven and bake uncovered for 10-12 minutes until the top is golden brown and bubbly. The crispy celery will become even more golden and crunchy during this final step. Let it rest for 5 minutes before serving—this allows the sauce to set slightly and makes serving easier.

This is the moment that matters: the contrast of creamy sauce with crispy celery topping creates the perfect texture combination. Serve immediately while it's hot, and watch everyone ask for seconds!

Make-ahead tips for this dish

Prep Ahead Strategy

Assemble the entire dish—chicken, pasta, sauce, and celery topping—up to 24 hours before baking. Store in an airtight container lined with plastic wrap pressed directly on the surface to prevent drying. The flavors deepen overnight, and the celery stays crisp when baked fresh. 💡

Overnight Flavor Boost

Refrigerate the assembled casserole for 12-24 hours before baking. This allows the Dijon mustard and chicken broth to meld completely, creating a richer velouté. When ready to bake, remove from the fridge 30 minutes before going into the oven to ensure even cooking.

Celery Prep Shortcut

Slice the celery matchsticks and store them in a sealed container with a damp paper towel to maintain crispness. Broil them fresh before adding to the baked dish—this ensures maximum crunch. I keep a sharp mandoline handy for even slices every time.

Baking Flexibility

Bake straight from the fridge if short on time, but add 5-7 extra minutes to the 425°F baking time. The cold start helps create a thicker, creamier sauce.

For a make-ahead meal, bake as directed, then refrigerate leftovers for up to 4 days—reheat covered at 350°F for 15 minutes.

Freezer-Friendly Option

Assemble the dish (without baking) and freeze in a single layer on a baking sheet for 1 hour. Transfer to a freezer-safe bag, squeezing out excess air. Thaw overnight in the fridge before baking. The texture holds up beautifully—just add 2-3 extra minutes to the baking time. ❄️

Weeknight Hack

Use pre-cooked rotisserie chicken to save time—just shred 2 cups and mix into the sauce. For the pasta, opt for whole wheat fettuccine (cook 1 minute less than package instructions). The dish still delivers that same creamy magic with half the effort. 💪

Frequently asked questions