I published this recipe for Chicken Tetrazzini Creamy Pasta a few years ago after a serious bout of “casserole boredom.” Everything felt the same. I wanted something that felt like a hug in a dish, but with a bit more flair than my usual weeknight throw-togethers. If you’re looking for another cozy, creamy chicken dish that’s incredibly easy, you must try my Creamy Garlic Chicken.
My secret? I treat the creamy sauce like I’m making a bechamel for a fancy lasagna. I don’t just dump a can of soup in. I build a rich, homemade sauce right in the same pan I cook the chicken. It adds maybe ten extra minutes, but the flavor payoff is absolutely massive. It turns a simple bake into something truly special.
This method also makes it the perfect home for your turkey leftovers. Just swap that roasted turkey for the chicken, and you’ve got a whole new holiday meal. No one will guess it started with yesterday’s bird!
Recipe Overview
- Cuisine: American-Italian
- Category: Dinner, Casserole, Pasta Bake
- Prep Time: 25 minutes
- Cook Time: 35 minutes
- Total Time: 1 hour
- Servings: 6-8 people
Why This Recipe is So Special
This isn’t just another spaghetti bake. What makes it stand out is that double-layer technique. We make a luxuriously thick and creamy sauce from scratch.
Then, we mix it with most of the pasta, chicken, and mushrooms. We save a little of that creamy goodness to pour over the top before adding the final cheese blanket.
This guarantees every single bite, from the crispy top to the bottom of the casserole dish, is packed with flavor and creaminess. It’s my foolproof way to avoid a dry casserole.
The Full Ingredient List
Gathering everything before you start is my number one tip for a smooth kitchen experience. Here’s what you’ll need.
- 12 oz spaghetti or linguine, broken in half
- 4 tbsp unsalted butter
- 1 medium yellow onion, finely chopped
- 8 oz cremini or white mushrooms, sliced
- 3 cloves garlic, minced
- 1/3 cup all-purpose flour
- 3 cups chicken broth
- 1 cup whole milk
- 1 cup heavy cream
- 1 cup grated Parmesan cheese, divided
- 1/2 tsp freshly grated nutmeg
- Salt and black pepper to taste
- 3 cups cooked chicken, shredded or cubed
- 1 cup frozen peas (no need to thaw)
- 1 1/2 cups shredded mozzarella cheese
- Fresh parsley, chopped (for garnish)
My Step-by-Step Method
Follow these steps and you’ll have a perfect, bubbly creamy bake. I promise it’s easier than it looks!
- Preheat your oven to 375°F (190°C). Grease a 9×13 inch casserole dish.
- Cook the pasta in salted water until just al dente (it will cook more in the oven). Drain and set aside.
- In a large, deep skillet or Dutch oven, melt the butter over medium heat. Add the onion and mushrooms. Cook until soft and the mushrooms have released their liquid, about 8 minutes.
- Stir in the garlic and cook for one more minute until fragrant.
- Sprinkle the flour over the mushroom mixture. Cook, stirring constantly, for 2 minutes. This cooks the raw flour taste out and is the key to a thick sauce.
- Slowly pour in the chicken broth, whisking constantly to avoid lumps. Then whisk in the milk and cream. Bring to a gentle simmer. The sauce will thicken noticeably.
- Remove from heat. Stir in 3/4 cup of the Parmesan cheese and the nutmeg. Season well with salt and pepper. Your homemade “cream of mushroom soup” base is ready!
- To the sauce, add the cooked pasta, chicken, and frozen peas. Stir until everything is beautifully coated.
- Spoon about two-thirds of this mixture into your prepared casserole dish. Pour the remaining saucy mixture over the top. This is the secret layer!
- Sprinkle the top with the mozzarella and the remaining 1/4 cup of Parmesan.
- Bake for 30-35 minutes, until the top is golden brown and the edges are bubbling. Let it sit for 10 minutes before serving. Garnish with fresh parsley.
My Top Tips for Success
- Undercook Your Pasta: Always boil your pasta for 1-2 minutes LESS than the package says for al dente. It soaks up sauce in the oven and finishes cooking there.
- Freshly Grate Your Cheese: The pre-shredded stuff has anti-caking agents that can make your sauce grainy. A block of cheese and a box grater make a world of difference.
- Let it Rest: I know it’s hard to wait, but letting the bake sit for 10 minutes after the oven lets the sauce set. This means you get clean slices instead of a saucy slide.
- Make it Ahead: Assemble the whole dish, cover, and refrigerate for up to 24 hours before baking. Just add 10-15 minutes to the bake time since it’s going in cold.
Common Mistakes to Avoid
I’ve made these so you don’t have to! Here’s how to sidestep common pitfalls.
Chicken Tetrazzini Creamy Pasta Recipe
The Full Ingredient List
My Step-by-Step Method
Notes
Enjoy your homemade Chicken Tetrazzini Creamy Pasta Recipe!
Nutrition Information
A Thin, Watery Sauce: This happens if you don’t cook the flour and butter mixture long enough. Make sure you cook it for a full 2 minutes. It should look like a wet paste. This step is non-negotiable for thickness.
Overcooked, Mushy Pasta: This is almost always because the pasta was boiled for too long initially. Remember, al dente is your friend! It will soften perfectly in the oven’s heat.
A Bland Final Dish: Your sauce needs seasoning before it goes in the oven. Taste it after you add the Parmesan. Does it need more salt? A crack of pepper? Season boldly at this stage, as the pasta and chicken will mellow it slightly. For a dish that’s packed with flavor from the start, try my Creamy Ranch Chicken Taco Soup.
NUTRITION INFORMATION
- Calories: ~580 kcal
- Carbohydrates: 42g
- Protein: 34g
- Fat: 30g
- Saturated Fat: 17g
- Cholesterol: 135mg
- Sodium: 780mg
- Fiber: 3g
- Sugar: 6g
FREQUENTLY ASKED QUESTIONS
Can I use canned cream of mushroom soup instead?
You can, for a shortcut version. Use two (10.5 oz) cans. Skip making the sauce from scratch (steps 3-7). Just mix the undiluted soup with 1 cup of broth or milk, then stir in the cooked pasta, chicken, and veggies. Bake as directed. The flavor won’t be as deep, but it will still be tasty!
What can I use instead of heavy cream?
For a slightly lighter option, you can use half-and-half. I don’t recommend using just milk, as the sauce won’t be as rich or thick properly. The heavy cream gives it that luxurious, comforting texture we all love.
How do I store and reheat leftovers?
Store cooled leftovers in an airtight container in the fridge for 3-4 days. Reheat individual portions in the microwave. For larger amounts, cover with foil and reheat in a 350°F oven until warmed through. You can add a tiny splash of broth or milk if it seems dry.
Leave a Reply! (I’d Love to Hear From You!)
Did this recipe help you beat the casserole blues? Did you try it with your turkey leftovers? I read every single comment and love hearing about your kitchen adventures. Tell me how it turned out for you below! If you loved it, please give it a 5-star rating—it helps other home cooks like you find this recipe. If you’re in the mood for a truly impressive stuffed chicken, you’ll adore my Creamy Tuscan Stuffed Chicken with Sun-Dried Tomatoes. Happy baking!
Tired of the 5 PM dinner panic? Grab my new 30-Minute Cookbook!