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!
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
- 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)
- Cook pasta and drain.
Quick Tip: Cook al dente (firm) so it doesn’t overcook as it bakes. - Prepare the sauce according to the recipe below.
- Assemble the casserole in a baking dish and top with cheese.
- 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.
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!
Cheers to Chicken Casseroles
Did your family love this Chicken Spaghetti? Leave a rating and a comment below!
Homemade Chicken Spaghetti
Ingredients
- 8 ounces spaghetti
- 2 cups cooked shredded chicken
- 14 ounces canned diced tomatoes with chilies such as Rotel, or petite diced tomatoes, lightly drained
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.
Nutrition Information
Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.
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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! ☺️
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!
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.
love your recipes
Delicious recipe!
Thank you very much for the receipts that you give us.
I’m so glad you’ve enjoyed them David!