Chicken Tetrazzini is the kind of dish that wraps itself around you like a soft blanket on a rainy day. Rich with creamy sauce, earthy mushrooms, tender chicken, and a layer of golden mozzarella, it's the kind of oven-baked comfort food that feeds both stomach and soul. Right after the first forkful, you'll know this one's a keeper.
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In this version of Chicken Tetrazzini, I bring you a recipe that's hearty, weeknight-friendly, and full of nostalgic flavor yet elevated with simple touches like white wine deglazing and real Parmesan cheese.
Why You'll Love This Recipe
Key Benefits
- Comfort in a Casserole Dish: This dish is warm, rich, and indulgent without being fussy. Perfect for chilly nights or family get-togethers.
- Make-Ahead Friendly: It reheats beautifully, making it ideal for meal prep or feeding a crowd.
- Fewer Dishes, More Flavor: Everything happens in one pot and one casserole dish.
Taste & Texture
The sauce is creamy and savory, with the depth of sautéed mushrooms, the brightness of white wine, and the slight tang from sour cream. Bites of juicy chicken tuck into long strands of spaghetti, all crowned with bubbly, melted mozzarella. It's soft, cheesy, and just the right amount of indulgent.
Dietary Attributes
This Chicken Tetrazzini recipe is high in protein and easily adaptable see variations below to make it gluten-free or more veggie-forward.
Ingredients & Substitutions
Ingredient List
Chicken:
- 1 large boneless, skinless chicken breast
- 2 teaspoons Italian seasoning
- Salt & pepper to taste
- 2 tablespoons olive oil
Sauce:
- 2 tablespoons butter
- ¼ cup dry white wine (or chicken broth)
- 8 oz. button mushrooms, diced
- ½ yellow onion, diced
- 3 cloves garlic, minced
- 10.5 oz. cream of chicken soup
- 10.5 oz. cream of mushroom soup
- 1 cup sour cream
- 1 cup milk
- ¾ cup grated Parmesan cheese
- 1 cup frozen peas
Pasta Bake:
- ¾ lb. spaghetti
- 2 cups shredded mozzarella cheese
- Fresh parsley, for garnish

Notes on Quality
- Chicken: Boneless chicken breast works well, but rotisserie chicken is a great shortcut.
- Wine: A dry white wine like Sauvignon Blanc adds acidity and depth. For an alcohol-free version, use chicken broth.
- Dairy: Use full-fat sour cream and milk for the creamiest texture.
Possible Substitutions
- Swap spaghetti for linguine, fettuccine, or even egg noodles.
- Use Greek yogurt in place of sour cream for a lighter twist.
- Sub veggies like spinach or broccoli for peas if preferred.
Step-by-Step Instructions
1. Prepare the Chicken
- Slice the chicken breast in half lengthwise for quicker, even cooking.
- Season with salt, pepper, and Italian seasoning.
- Heat olive oil in a large pot over medium-high. Sear chicken for 5-6 minutes per side until golden and cooked through.
- Let rest 10 minutes, then cut into bite-sized pieces.
2. Make the Sauce
- Preheat oven to 350°F.
- In the same pot, melt butter and add white wine. Scrape up browned bits from the bottom this is where the flavor lives.
- Simmer for 5 minutes to reduce.
- Add mushrooms and onions; cook 5 minutes. Stir in garlic and cook for 1 more minute.
- Lower heat. Stir in both soups, sour cream, milk, Parmesan, peas, and chicken. Warm through gently.
3. Cook the Pasta
- Boil spaghetti in salted water until just al dente (about 10 minutes). Drain.
- Return pasta to its pot and pour the warm sauce over it. Toss to coat evenly.
4. Assemble & Bake
- Transfer to a 9×13″ casserole dish. Top with shredded mozzarella.
- Bake uncovered at 350°F for 15 minutes.
- Increase heat to 450°F and bake another 10 minutes until golden and bubbly.
- Let sit 5 minutes before serving. Garnish with fresh parsley.
Expert Tips & Tricks
Best Practices
- Deglaze with intention: That sizzle when the wine hits the pot? That's flavor waking up.
- Go al dente: Slightly undercooked pasta ensures it doesn't go mushy in the oven.
Common Mistakes
- Skipping the rest time for chicken: Letting it sit makes for juicier bites.
- Overbaking: Keep a close eye in the final 10 minutes to prevent drying out.
Time-Saving Tips
- Use pre-cooked rotisserie chicken or frozen diced chicken to cut down prep.
- Assemble the whole dish ahead and bake when ready.

Serving Suggestions
Pairings
- Side Salad: A lemony arugula salad balances the richness.
- Garlic Bread: For soaking up any extra sauce.
Presentation Ideas
- Serve in shallow bowls with extra Parmesan grated on top and a sprig of parsley.
Beverage Pairings
- White Wine: Try Chardonnay or Pinot Grigio.
- Mocktail: A sparkling lemonade with mint makes a refreshing match.
Storage & Reheating
Leftover Storage
- Store in an airtight container in the fridge for up to 4 days.
- Can be frozen (before or after baking) for up to 3 months.
Reheating Methods
- Oven: 350°F for 15-20 minutes, covered.
- Microwave: Heat in 1-minute bursts, stirring in between.
- Add a splash of milk to loosen the sauce if needed.
Frequently Asked Questions
Substitutions & Adjustments
Can I use chicken thighs instead of breast?
Absolutely! Just trim the fat and cook until no longer pink inside.
Can I double the recipe?
Yes use a larger pan or divide between two dishes.
Troubleshooting
Why is my sauce too thick?
Add more milk or broth to loosen it up before baking.
Why is it watery?
Make sure to reduce the wine fully and don't overcook the pasta.

Variations & Customizations
Dietary Adaptations
- Gluten-Free: Use gluten-free pasta and soup alternatives.
- Lower Carb: Try spiralized zucchini or spaghetti squash instead of pasta.
Flavor Twists
- Add a pinch of nutmeg for warmth, or red pepper flakes for heat.
- Stir in chopped sun-dried tomatoes or roasted red peppers for extra depth.
Seasonal/Holiday Versions
- Add chopped leftover turkey and cranberries for a Thanksgiving-style Tetrazzini.
- In spring, swap peas for asparagus tips or fresh spinach.
Final Thoughts
This Chicken Tetrazzini isn't just another casserole it's a cozy, creamy memory in the making. Whether you serve it to your family on a weeknight or bring it to a potluck, it's guaranteed to disappear quickly. It's comfort food that shows you care with every cheesy, herb-scented bite.
Don't stress about perfection this dish loves you back even when it looks a little rustic. Just grab a fork, scoop generously, and enjoy.


Chicken Tetrazzini
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour
- Yield: 6 servings 1x
- Category: Dinner
- Method: Baking
- Cuisine: American
Description
A creamy, cozy pasta bake with tender chicken, sautéed mushrooms, and melty mozzarella. This comforting casserole is perfect for chilly nights or family gatherings.
Ingredients
- 1 large boneless, skinless chicken breast
- 2 teaspoons Italian seasoning
- Salt & pepper to taste
- 2 tablespoons olive oil
- 2 tablespoons butter
- ¼ cup dry white wine (or chicken broth)
- 8 oz. button mushrooms, diced
- ½ yellow onion, diced
- 3 cloves garlic, minced
- 10.5 oz. cream of chicken soup
- 10.5 oz. cream of mushroom soup
- 1 cup sour cream
- 1 cup milk
- ¾ cup grated Parmesan cheese
- 1 cup frozen peas
- ¾ lb. spaghetti
- 2 cups shredded mozzarella cheese
- Fresh parsley, for garnish
Instructions
- Slice chicken breast in half lengthwise. Season with salt, pepper, and Italian seasoning.
- Heat olive oil in a large pot over medium-high. Sear chicken 5-6 minutes per side. Let rest, then dice.
- Preheat oven to 350°F. In the same pot, melt butter and add wine. Scrape up browned bits and simmer 5 minutes.
- Add mushrooms and onions; cook 5 minutes. Stir in garlic and cook 1 more minute.
- Reduce heat. Stir in both soups, sour cream, milk, Parmesan, peas, and chicken. Warm gently.
- Boil spaghetti in salted water until just al dente. Drain.
- Return pasta to pot. Pour sauce over and toss to coat.
- Transfer to 9×13″ casserole dish. Top with mozzarella.
- Bake uncovered at 350°F for 15 minutes. Then increase to 450°F and bake 10 more minutes until golden and bubbly.
- Let rest 5 minutes. Garnish with parsley and serve.
Notes
To save time, use rotisserie chicken or pre-cooked frozen chicken. Store leftovers in the fridge for up to 4 days or freeze for up to 3 months. Reheat in the oven at 350°F for 15-20 minutes or in the microwave in 1-minute bursts, adding a splash of milk if needed.
Nutrition
- Serving Size: 1 serving
- Calories: 530
- Sugar: 4g
- Sodium: 780mg
- Fat: 28g
- Saturated Fat: 12g
- Unsaturated Fat: 14g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 3g
- Protein: 30g
- Cholesterol: 90mg









