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Chicken Spaghetti Casserole

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Amy GoldenBy Amy Golden
Amy Golden
Amy Golden Food Writer

Curious home cook and copyeditor, with a zest for tasting and writing.

Expertise: Baking and Southern Cooking View all posts →
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This creamy, classic comfort dish is perfect for potlucks or family dinners.

Creamy baked cheesy casserole with melted cheese and fresh herbs, perfect comfort food.

If comfort food is your love language, get to know chicken spaghetti! This is a casserole that has roots in Southern cooking but is popular throughout the Midwest as well. For me, chicken spaghetti is one of those dishes that instantly takes me back to my childhood, when casseroles were the norm and convenience products like cream of mushroom soup and Velveeta were popular. Chicken spaghetti is not fancy food, but it will warm your heart and fill your belly.

Some food historians think that chicken spaghetti descended, so to speak, from turkey tetrazzini. There are quite a few similarities: spaghetti noodles, poultry for protein, and a creamy sauce. However, chicken spaghetti is a bit simpler of a recipe, and our chicken spaghetti does not make use of processed cheese like Velveeta. Real cheese and sour cream help to make this sauce extra creamy and tasty.

You will love making chicken spaghetti for potlucks, big dinners, or even meal prepping ahead for lunches during the workweek. Don’t have time to cook your own chicken? Work smarter, not harder and simply shred enough of a supermarket rotisserie chicken instead. It’s a great time-saver, especially on a weeknight!

Cooked shredded chicken, pasta, cheese, and ingredients for baked pasta dish on a white surface.

Veggie options in chicken spaghetti

In our chicken spaghetti, you throw in diced red bell pepper, which adds color, flavor, and a little crunch to the casserole. However, you can experiment and find what you like best. If you prefer, you can use a can of drained chopped tomatoes and peppers. Or, if you don’t want anything red but still want some fresh veggies in your chicken spaghetti, sauté eight ounces of sliced mushrooms for a few minutes in some butter and stir those into the sauce mixture before baking.

Creamy chicken and mushroom casserole in a white baking dish.

How do I store leftovers?

Leftover chicken spaghetti stores beautifully. You can refrigerate it as long as it’s covered tightly (or placed into an airtight container) for up to 4-5 days. Reheat either in the microwave or in a preheated 350°F oven until warmed through. You can also freeze leftovers. Consider freezing individual portions so you can just thaw and heat up one serving at a time. Frozen leftover chicken spaghetti will keep in the freezer for up to 2 months. Thaw overnight in the fridge or use your microwave defrost setting before reheating.

Creamy baked cheese casserole with herbs and red bell peppers - homemade comfort food.

Serving suggestions

Serve chicken spaghetti with your favorite garlic bread or Garlic Breadsticks. Especially if it’s the main for a family dinner or big gathering, consider side dishes that add a little color and textural variation. For instance, Caesar Salad or a green salad with tomatoes, red onion, and black olives works well. Or, for another type of side, try Air-Fryer Asparagus. Whichever side you choose, the chicken spaghetti will steal the show and leave everyone’s tummies and hearts full.

Creamy chicken and broccoli casserole with melted cheese on top.
Creamy baked cheesy casserole with melted cheese and fresh herbs, perfect comfort food.

Chicken Spaghetti Casserole

Close-up of a smiling woman with curly dark hair sitting indoors at a cafe or restaurant.Amy Golden
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Print Recipe Pin Recipe
Prep Time 10 minutes mins
Cook Time 1 hour hr
Total Time 1 hour hr 10 minutes mins
Course Main Course
Cuisine American
Servings 8
Calories 356 kcal

Ingredients
  

  • 10 ounces spaghetti broken into pieces
  • 3 cups cooked, shredded chicken
  • 2 cans cream of mushroom soup (10 1/2 ounces each)
  • 1 1/4 cups chicken broth
  • 2/3 cup sour cream
  • 1/2 cup grated Parmesan cheese
  • 1 red bell pepper finely diced
  • 1 teaspoon garlic powder
  • 3/4 teaspoon onion powder
  • 1/2 teaspoon kosher salt
  • 2 pinches black pepper
  • 1 1/2 cups shredded cheddar cheese
  • Fresh parsley chopped, for garnish

Instructions
 

  • Preheat the oven to 350°F.
  • Cook the spaghetti in lightly salted water according to package directions until al dente. Drain and set aside.
    Cooked spaghetti pasta boiling in a pot on a stovetop.
  • Mix cooked chicken, cream of mushroom soup, chicken broth, sour cream, Parmesan, diced bell pepper, garlic powder, onion powder, salt, and pepper together in a large bowl. Stir until combined.
    Creamy cheese and herb soup in a white bowl with shredded cheese on top.
  • Fold the cooked spaghetti into the chicken mixture until evenly distributed.
    Creamy spaghetti carbonara with pancetta in a white bowl, topped with pink pepper flakes.
  • Pour the mixture into a greased 9×13-inch baking dish, spreading it out evenly.
    Creamy chicken and mushroom casserole in a white baking dish.
  • Sprinkle the shredded cheddar cheese over the top of the casserole.
    Creamy baked pasta casserole topped with shredded cheddar cheese.
  • Bake in the preheated oven for 40-50 minutes, or until the casserole is bubbly and the cheese is golden brown.
    Creamy baked macaroni and cheese casserole with melted cheese and bacon bits.
  • Remove from oven and let cool for a few minutes before serving. Sprinkle with fresh parsley for garnish.
    Creamy baked macaroni and cheese with melted cheese and fresh herbs, served in a white casserole dish.

Nutrition

Calories: 356kcalCarbohydrates: 30gProtein: 20gFat: 17gSaturated Fat: 8gSodium: 1028mgFiber: 2g
Keyword Chicken Spaghetti Casserole
Tried this recipe?Let us know how it was!
Close-up of a smiling woman with curly dark hair sitting indoors at a cafe or restaurant.

About Amy Golden

Curious home cook and copyeditor, with a zest for tasting and writing.

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Published: Sep 11, 2025 | Updated: Feb 3, 2026

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