
A creamy, cheesy chicken tetrazzini that’s perfect for meal prep and easy freezer dinners. This comforting casserole is packed with tender chicken, vegetables, and a rich mushroom sauce, making it one of our favorite make-ahead freezer meals.
Why You’ll Love This Recipe
There are few meals more comforting than a creamy pan of chicken tetrazzini bubbling fresh from the oven. Even better? It freezes beautifully.
Whether you’re stocking your freezer before a new baby arrives, planning ahead for busy weeknights, or simply trying to reduce food waste, this freezer-friendly chicken tetrazzini is one you’ll come back to again and again.
The creamy mushroom sauce keeps everything moist after freezing, while the vegetables add just enough freshness to balance the rich cheese and pasta.
Why This Recipe Freezes So Well
Unlike some creamy casseroles, chicken tetrazzini reheats surprisingly well.
A few simple tricks help preserve the texture:
- Slightly undercook the pasta.
- Allow the casserole to cool completely before freezing.
- Use full-fat sour cream for a creamier sauce.
- Freeze before baking for the freshest flavor.
Ingredients
- 2-3 boneless, skinless chicken breasts
- Salt and pepper
- 1 teaspoon Garlic powder
- 1 tablespoon Italian seasoning
- 2 tablespoons butter
- ½ sweet onion, diced
- 1 celery rib, diced
- 1 carrot, peeled into ribbons [easier hack: matchstick carrots]
- 2 cans cream of mushroom soup
- 1 cup chicken broth
- ¼ cup sour cream
- 1 cup reserved pasta water
- 1 cup shredded cheddar or mozzarella cheese
- 12 ounces spaghetti or linguine, cooked just shy of al dente
Instructions
Step 1
Season the chicken breasts with salt, pepper, and half of the garlic powder and Italian seasoning. Bake until fully cooked, then dice into bite-sized pieces.
Step 2
Meanwhile, cook the pasta until it is about 2 minutes less than al dente. Reserve one cup of pasta water before draining.
Step 3
In a large skillet, melt the butter over medium heat.
Cook the onion, celery, and carrot until softened, about 5–7 minutes.
Step 4
Stir in the cream of mushroom soup, chicken broth, sour cream, reserved pasta water, and half the shredded cheese.
Mix until smooth and creamy.
Step 5
Fold in the cooked chicken and pasta until everything is evenly coated.
Step 6
Transfer to a greased 9×13 casserole dish. Sprinkle the top with remaining cheese.
To Bake Immediately
Bake at 350°F for 30–35 minutes until hot and bubbly.
To Freeze
Allow the assembled casserole to cool completely.
Cover tightly with plastic wrap followed by aluminum foil (or use a freezer-safe casserole dish with a lid).
Freeze for up to 3 months.
To Cook From Frozen
Remove the plastic wrap.
Cover with foil.
Bake at 350°F for about 1 hour 15 minutes, then uncover and bake another 15–20 minutes, or until heated through.
To Bake After Thawing
Thaw overnight in the refrigerator.
Bake at 350°F for 35–40 minutes until bubbly.
Storage
Refrigerator: Up to 4 days.
Freezer: Up to 3 months.
Best Containers: Aluminum Pans with Lids, Glass Casserole Dish
SHOP MY Amazon Storefront for Containers and Equipment
Tips for Success
- Don’t overcook the pasta before freezing.
- Let the casserole cool before wrapping.
- Label with the cooking instructions before freezing.
- Freshly shredded cheese melts much better than pre-shredded varieties.
- Make it even easier by using pre-chopped celery and onion from produce aisle and bagged matchstick carrots.
Variations
- Add sliced mushrooms for extra flavor.
- Stir in frozen peas.
- Swap the cheddar for Monterey Jack or mozzarella.
- Add cooked bacon for a smoky twist.
- Sprinkle buttered breadcrumbs on top before baking.

Frequently Asked Questions
Can you freeze chicken tetrazzini?
Yes! Chicken tetrazzini is one of the best casseroles to freeze because the creamy sauce helps prevent it from drying out. For best results, freeze it before baking.
How long does chicken tetrazzini last in the freezer?
When wrapped well, it will keep for up to 3 months.
Can I bake chicken tetrazzini straight from frozen?
Yes. Cover with foil and bake at 350°F until the center reaches 165°F. Expect it to take about 90 minutes, depending on the depth of the casserole.
What pasta works best?
Spaghetti and linguine are classic choices, but fettuccine or rotini also work well.
Can I use rotisserie chicken?
Absolutely! Rotisserie chicken is a great shortcut and makes this recipe even faster to assemble.
Freezer Chicken Tetrazzini
Ingredients
- 2-3 boneless Skinless Chicken Breasts
- Salt and pepper
- 1 tsp Garlic powder
- 1 Tbsp Italian seasoning
- 2 tablespoons butter
- ½ sweet onion diced
- 1 celery rib diced
- 1 carrot peeled into ribbons
- 1 can cream of mushroom soup
- 1 can cream of chicken soup
- 1 cup chicken broth
- ¼ cup sour cream
- 1 cup reserved pasta water
- 1 cup shredded cheddar or mozzarella cheese
- 12 ounces spaghetti or linguine cooked just shy of al dente
Instructions
- Season the chicken breasts with salt, pepper, and half of the garlic powder and Italian seasoning. Bake until fully cooked, then dice into bite-sized pieces.
- Meanwhile, cook the pasta until it is about 2 minutes less than al dente. Reserve one cup of pasta water before draining.
- In a large skillet, melt the butter over medium heat.
- Cook the onion, celery, and carrot until softened, about 5–7 minutes.
- Stir in the cream of mushroom soup, cream of chicken soup, chicken broth, sour cream, reserved pasta water, the rest of the garlic seasoning and Italian seasoning, and half of the shredded cheese.
- Mix until smooth and creamy.
- Fold in the cooked chicken and pasta until everything is evenly coated.
- Transfer to a greased 9×13 casserole dish. Sprinkle top with remaining shredded cheese.
Notes
To Bake Immediately
Bake at 350°F for 30–35 minutes until hot and bubbly.To Freeze
Allow the assembled casserole to cool completely. Cover tightly with plastic wrap followed by aluminum foil (or use a freezer-safe casserole dish with a lid). Freeze for up to 3 months.To Cook From Frozen
Remove the plastic wrap. Cover with foil. Bake at 350°F for about 1 hour 15 minutes, then uncover and bake another 15–20 minutes, or until heated through.To Bake After Thawing
Thaw overnight in the refrigerator. Bake at 350°F for 35–40 minutes until bubbly.Storage
Refrigerator: Up to 4 days. Freezer: Up to 3 months.Tips for Success
- Don’t overcook the pasta before freezing.
- Let the casserole cool before wrapping.
- Label with the cooking instructions before freezing.
- Freshly shredded cheese melts much better than pre-shredded varieties.Make it even easier by using pre-chopped celery and onion from produce aisle and bagged matchstick carrots.
More Freezer Meal Recipes You’ll Love
Once you’ve made this freezer chicken tetrazzini, try stocking your freezer with other family favorites like:
- Easy Freezer Salmon Stew
- Freezer Friendly Chicken Parm
- Freezer Spaghetti Sauce (Easy Make-Ahead Family Dinner)
