Chicken Spaghetti sauce and bowls of chicken, pasta and cheese

Creamy, cozy, and delicious!

This chicken spaghetti recipe combines chicken and spaghetti in a creamy, cheesy sauce and bakes until golden and bubbly.

Make the sauce from scratch or the shortcut version—the choice is yours!

taking Chicken Spaghetti out of the dish

Holly’s Recipe Highlights

Like most of my recipes, this recipe turns basic ingredients into a special meal.

  • Flavor: This chicken spaghetti recipe has a creamy cheese sauce with a bit of a Southwestern flair. It’s not spicy—perfect for a family dinner.
  • Time-Saving Tip: I’ve included two sauces for this recipe: my favorite from scratch sauce and a shortcut sauce in the recipe notes.
  • Prep tip: Don’t overcook the pasta; it’ll cook more in the oven as the casserole bakes.
  • Freezer Meal: This recipe makes a great freezer meal. I’ve included freezing (and baking) instructions below.
Ingredients for chicken spaghetti on a sheet pan

Ingredients for Chicken Spaghetti

  • Chicken – Use cooked chicken—rotisserie chicken makes this easy. You can also use leftovers or bake chicken breasts in the oven.
  • Pasta – I use spaghetti noodles, but you can replace them with any variety of long pasta.
  • Onion/Garlic – Use fresh if possible. Replace fresh with 1 teaspoon onion powder and ½ teaspoon garlic powder.
  • Rotel/Bell Pepper – These also flavor the casserole, and Rotel tomatoes add a bit of freshness.
  • Chicken Broth – This is the base of the sauce and adds both flavor and salt—if using low-sodium broth or stock, add extra salt.
  • Cream – Half and half or light cream makes the sauce creamy without being too rich.
  • Cheese – Both cheddar cheese and Parmesan add flavor to the cheese sauce. Pre-shredded cheese works well in this recipe.

How to Make Chicken Spaghetti (overview)

  1. Cook pasta and drain.
    Quick Tip: Cook al dente (firm) so it doesn’t overcook as it bakes.
  2. Prepare the sauce according to the recipe below.
  3. Assemble the casserole in a baking dish and top with cheese.
  4. Bake until bubbly.

Serving Suggestions

Salad: I love to serve this dish with a fresh salad—either green salad or Caesar salad.

Bread: French bread or garlic bread is great to sop up any bits of sauce and help stretch the meal further.

plated Chicken Spaghetti with casserole dish in the back full

Leftovers and Meal Prep

  • Store leftovers in an airtight container in the fridge for up to 4 days.
  • This chicken spaghetti recipe can be frozen before baking for up to 4 months.
  • To bake from frozen, cover with aluminum foil to prevent the cheese topping from overcooking and bake at 375°F for about an hour, or until it is piping hot throughout!

Freezer Tip

Line the baking dish with parchment paper and assemble the casserole. Once frozen, lift the parchment paper and casserole from the baking dish, wrap it tightly with plastic wrap, and freeze. To bake, place the frozen block of chicken spaghetti back into the casserole dish.

Cheers to Chicken Casseroles

Did your family love this Chicken Spaghetti? Leave a rating and a comment below!

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chicken spaghetti in a baking dish
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Homemade Chicken Spaghetti

This easy cheesy Chicken Spaghetti recipe combines tender chicken and spaghetti in a quick and delicious cheese sauce.
Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Servings 6 servings
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Ingredients  

For the Sauce

  • ¼ cup salted butter
  • 1 medium yellow onion chopped
  • 1 clove garlic minced
  • ½ green bell pepper chopped
  • ¼ cup all-purpose flour
  • 1 teaspoon Italian seasoning
  • 1 cup chicken broth
  • 1 cup half and half or light cream
  • ½ cup shredded Parmesan cheese
  • 2 cups shredded sharp cheddar cheese divided
  • ¼ teaspoon salt more to taste
  • ¼ teaspoon black pepper more to taste

Instructions 

  • Preheat the oven to 375°F. Grease a 9×13-inch baking dish.
  • Cook the spaghetti al dente in a large pot salted water according to package directions. Drain well, do not rinse.
  • Meanwhile, to make the sauce, in a large skillet, melt the butter over medium heat. Add onion, garlic, and bell pepper can cook until tender. Stir in the flour and Italian seasoning and cook for 1-2 minutes.
  • Gradually add the broth and half and half, a bit at a time, whisking until smooth after each addition. Bring to a boil and let boil 1 minute or until thick and bubbly. 
  • Remove from heat and whisk in the Parmesan cheese, 1 cup cheddar cheese, and salt and pepper.
  • Combine spaghetti, chicken, cream sauce, and canned tomatoes. Mix well. Spread in baking dish.
  • Top with remaining 1 cup of cheddar cheese and bake for 25-30 minutes or until hot and bubbly.

Video

Notes

  • Pasta: Don’t overcook the pasta, it will cook more as it bakes.
  • Cheese: Pre-shredded cheese works in this recipe, but shredding your own makes for a smoother sauce. Sharp cheddar adds the best flavor.
  • To Make a Shortcut Sauce
    Cook the vegetables (onion, garlic, bell pepper) as directed. Add 3⁄4 pound cubed Velveeta cheese, 10 oz condensed cream of mushroom soup or cream of chicken soup, and drained Rotel tomatoes. Stir until melted. Skip the salt and add ½ teaspoon each of onion powder, garlic powder, and black pepper.
 
4.99 from 690 votes

Nutrition Information

Calories: 518 | Carbohydrates: 38g | Protein: 22g | Fat: 30g | Saturated Fat: 18g | Cholesterol: 95mg | Sodium: 606mg | Potassium: 377mg | Fiber: 2g | Sugar: 3g | Vitamin A: 970IU | Vitamin C: 18.6mg | Calcium: 425mg | Iron: 2.1mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Casserole, Chicken, Main Course, Pasta
Cuisine American, Italian
Chicken Spaghetti on a plate with a title
easy cheesy Chicken Spaghetti on a plate with writing
close up of Chicken Spaghetti with a title
Chicken Spaghetti in the pan and plated with writing

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About the author

Holly Nilsson is the creator of Spend With Pennies, where she creates easy, comforting recipes made for real life. With a passion for nostalgic flavors and simplified techniques, Holly helps busy home cooks create delicious meals that always work. She is also the author of “Everyday Comfort,” which promises to inspire even more hearty, home-cooked meals.
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Comments

  1. Could this be cooked in an air fryer after assembling, instead of an oven? I would love.to try this recipe, but I am limited to 4 cooking units- crock-pot, electric skillet, flat top griddle,and an air fryer….My air fryer does have a bake setting, though! ☺️

    1. I haven’t tried it but since all elements in the casserole are cooked, it should work. You may need to make ½ recipe to fit it in an air fryer. Let us know how it goes!

  2. One of my families favorite dinners on a cold winter night. I use the whole 16 oz box of spaghetti. All other ingredients remain the same and it is enough for one 9×13 in and one 5×8 in casserole.5 stars