Chicken & Squash Casserole

If you love old-fashioned comfort food that is creamy, hearty, and easy to serve to a hungry family, this Chicken & Squash Casserole is exactly the kind of recipe to keep in your rotation. It combines tender cooked chicken, soft yellow squash, carrots, onion, a creamy sour cream and mushroom soup mixture, and a buttery stuffing topping for a casserole that feels warm, filling, and familiar in the best possible way.

This is one of those casseroles that works especially well when you want a full dinner in one dish. The squash cooks down until tender, the chicken makes it hearty, and the creamy filling brings everything together into a cozy bake that feels right at home on a weeknight table or at a family gathering. Then the buttery stuffing on top adds just enough texture to make every bite more satisfying.

It is simple, comforting, and exactly the kind of recipe that reminds you why casseroles stay popular for generations.

Why I Love This Recipe

What I love most about this casserole is how practical it is. It uses basic ingredients, feeds a crowd well, and turns simple chicken and vegetables into something that feels warm and complete.

I also love the texture contrast. The filling is creamy and soft, while the buttery stuffing topping adds just enough golden texture on top to keep the casserole from feeling too heavy.

Another reason this recipe stands out is that it is a great way to turn cooked chicken into a full meal. Whether you use freshly cooked chicken or leftovers, it all bakes together into something that tastes homemade and comforting.

Ingredients

• 2 1/2 to 3 pounds chicken
• 2 pounds yellow squash, cut into 1/4-inch slices
• 1/2 cup broth, plus more if needed
• 2 large carrots, shredded
• 1 medium onion, chopped
• 1 carton sour cream, 8 ounces
• 1 can cream of mushroom soup, 10 1/2 ounces
• Salt, to taste
• Black pepper, to taste
• 1/2 cup chicken-flavored stuffing mix
• 1/4 cup butter, melted

Swaps and Notes

Yellow squash is the star vegetable here, and slicing it fairly thin helps it cook down nicely and blend into the casserole.

Cooked chicken from any method will work, including roasted, boiled, or leftover chicken. Just make sure it is cooled enough to remove from the bone if needed.

Cream of mushroom soup and sour cream create the creamy base, but the final seasoning still matters. A good taste of salt and pepper helps bring the whole casserole to life.

The stuffing mix on top adds texture and flavor, so even though it is a small amount, it makes a big difference in the finished dish.

How to Make Chicken & Squash Casserole

1. Cook the chicken

Cook the chicken until done, then let it cool enough to handle.

Remove the meat from the bone and set it aside.

2. Cook the squash

Bring the squash to a boil in the broth and cook for about 12 minutes, until tender.

Drain well.

3. Combine the vegetables

In a large bowl, combine the cooked squash with the shredded carrots and chopped onion.

4. Make the creamy mixture

In a separate bowl, combine the sour cream, cream of mushroom soup, salt, and black pepper.

5. Mix the casserole filling

Add the cooked chicken and vegetables to the creamy mixture and stir until everything is well combined.

6. Fill the baking dish

Spoon the mixture into a lightly greased 9×13-inch baking dish.

7. Add the topping

Mix the stuffing mix with the melted butter.

Sprinkle it evenly over the casserole.

8. Bake

Bake at 350°F for about 30 minutes, until heated through and lightly golden on top.

Tips for Success

Drain the squash well after boiling so the casserole does not become too watery.

Shred or chop the chicken into bite-sized pieces so it mixes evenly through the casserole.

Taste the filling before baking if possible. Since cream soups can vary in saltiness, it is helpful to adjust the seasoning before it goes into the oven.

If you want a little more topping, you can increase the stuffing mixture slightly for extra crunch on top.

Serving Suggestions and Pairings

This casserole is hearty enough to serve on its own, but it also pairs well with green beans, a simple salad, dinner rolls, or fruit on the side. It is especially nice for family dinners when you want something easy and comforting.

If you love cozy chicken casseroles, These Chicken Enchiladas Are My Go-To for Cozy Crowd-Pleasing Dinners are another great recipe to save.

For another practical chicken dinner, This Mexican Chicken and Rice Casserole Is My Favorite One-Pan Dinner That’s Always a Hit fits right into the same comfort-food style.

If you want a lighter chicken option for another day, A Light, Tangy Chicken Salad I Actually Crave and There’s No Mayo in Sight gives you a fresher contrast.

And for dessert, This Big Family Banana Pudding Is My Favorite Classic Dessert to Feed a Crowd is a perfect comforting finish.

Nutritional Information Per Serving

Estimated per serving, based on 8 servings:

• Calories: 340
• Protein: 26g
• Carbohydrates: 10g
• Fat: 21g
• Saturated Fat: 9g
• Cholesterol: 95mg
• Sodium: 420mg
• Fiber: 2g
• Sugar: 4g

Nutritional values are approximate and may vary depending on the chicken and soup used.

Storage and Leftover Tips

Store leftovers in an airtight container in the refrigerator for up to 4 days.

Reheat in the oven or microwave until warmed through. If reheating in the oven, covering it loosely at first can help keep the casserole from drying out.

This casserole also works well as a make-ahead dish. You can assemble it ahead of time, refrigerate it, and bake when ready.

More Recipes You Will Love

If you enjoyed this Chicken & Squash Casserole, here are a few more recipes to try:

• These Chicken Enchiladas Are My Go-To for Cozy Crowd-Pleasing Dinners
• Easy Cheesy Chicken Sliders with Marinara Garlic Butter
• This Mexican Chicken and Rice Casserole Is My Favorite One-Pan Dinner That’s Always a Hit
• A Light, Tangy Chicken Salad I Actually Crave and There’s No Mayo in Sight
• This Big Family Banana Pudding Is My Favorite Classic Dessert to Feed a Crowd

Final Thoughts

This Chicken & Squash Casserole is the kind of dependable comfort-food recipe that makes dinner feel easier and more satisfying. It is creamy, hearty, full of homestyle flavor, and simple enough to make again and again.

Whether you serve it for a family weeknight meal or bring it to the table for a gathering, it is the kind of casserole that still feels like home.