Save Recipe

Sign in and save recipe to your profile.

Sign In
Get free recipes sent straight into your inbox!

Cheesy Chicken Spaghetti is a family comfort food favorite! This recipe uses a from-scratch sauce that is super easy to make so that your delicious cheesy casserole is ready for the oven in just 15 minutes.

a red and white baking dish filled with cheesy chicken spaghetti

We can’t get enough of this cheesy twist on a classic recipe. Is anyone else over spaghetti with tomato sauce and meatballs? Sure, it’s a classic and we love the classics, but after the 2,393,984th time, we’re ready for something different. And boy is this different in all of the right ways!

We love dishes that are easily customizable, and cheesy chicken spaghetti is no exception. Prefer shredded chicken? Go for it! Want a little kick of spice? Replace the diced green chilis with diced jalapeños. You really can make this recipe your own by changing it to suit your own personal preferences. 

  • Can I make cheesy chicken spaghetti vegetarian? 

    You can easily make this dish vegetarian by leaving out the chicken. If you want to make sure it is filling enough as the main meal, add an 8oz container of sliced and sautéd crimini or white button mushrooms. 

  • Cheese Options:

    Instead of cheddar cheese, mix things up with Monterey jack, mozzarella, pepper jack, or a Mexican cheese blend.  

  • Storage and reheating instructions: 

    Store any leftovers in the fridge in an airtight container for up to 4 days. Reheat on the stovetop in a large skillet, adding a few tablespoons of water as needed to thin out the sauce. 

A forkful of cheesy chicken spaghetti hovering over its plate

If you like this recipe, you may be interested in these other delicious pasta recipes:

Watch the video below where Rachel will walk you through every step of this recipe. Sometimes it helps to have a visual, and we’ve always got you covered with our cooking show. You can find the complete collection of recipes on YouTube, Facebook Watch, or our Facebook Page, or right here on our website with their corresponding recipes.

A forkful of cheesy chicken spaghetti hovering over its plate
Cheesy Chicken Spaghetti is a family comfort food favorite! This recipe uses a from-scratch sauce that is super easy to make so that your delicious cheesy casserole is ready for the oven in just 15 minutes.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Ingredients
  • 8 ounces spaghetti
  • 2 tablespoons butter
  • 1 medium white onion diced
  • 1 green bell pepper diced
  • 2 cloves garlic minced
  • 1/4 cup all-purpose flour
  • 2 cups milk
  • 3 cups shredded cheddar cheese divided
  • 15 ounces canned diced tomatoes drained
  • 4 ounces canned diced green chiles drained
  • 2 cups cooked diced chicken
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
Instructions
  • Preheat oven to 350 degrees. Cook spaghetti in a saucepan according to package directions.
  • Meanwhile, melt butter in a large pot over medium-high heat. Add in onion and bell pepper and cook until softened, about 5-7 minutes.
  • Add in garlic and flour and continue to cook 2 more minutes. Slowly stir in milk and bring to a simmer until thickened. Once the sauce thickens, immediately remove from heat.
  • Stir in 2 cups cheddar cheese until melted and smooth. Then stir in diced tomatoes, diced green chilis, diced cooked chicken, and drained spaghetti. Season with salt and pepper to taste.
  • Pour pasta into a lightly greased 9×13 pan. Top with remaining 1 cup cheddar cheese. Bake in the preheated oven for 25 to 30 minutes until cheese is warm and bubbly and starting to brown.
Notes
Instead of cheddar cheese, mix things up with Monterey jack, mozzarella, pepper jack, or a Mexican cheese blend. 

Nutrition

Calories: 556kcal | Carbohydrates: 44g | Protein: 28g | Fat: 30g | Saturated Fat: 17g | Cholesterol: 95mg | Sodium: 870mg | Potassium: 497mg | Fiber: 3g | Sugar: 8g | Vitamin A: 1056IU | Vitamin C: 31mg | Calcium: 592mg | Iron: 2mg
Course: Main Dish
Cuisine: American
Keyword: Chicken Spaghetti
A forkful of cheesy chicken spaghetti hovering over its plate
Cheesy Chicken Spaghetti is a family comfort food favorite! This recipe uses a from-scratch sauce that is super easy to make so that your delicious cheesy casserole is ready for the oven in just 15 minutes.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Ingredients
  • 8 ounces spaghetti
  • 2 tablespoons butter
  • 1 medium white onion diced
  • 1 green bell pepper diced
  • 2 cloves garlic minced
  • 1/4 cup all-purpose flour
  • 2 cups milk
  • 3 cups shredded cheddar cheese divided
  • 15 ounces canned diced tomatoes drained
  • 4 ounces canned diced green chiles drained
  • 2 cups cooked diced chicken
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
Instructions
  • Preheat oven to 350 degrees. Cook spaghetti in a saucepan according to package directions.
  • Meanwhile, melt butter in a large pot over medium-high heat. Add in onion and bell pepper and cook until softened, about 5-7 minutes.
  • Add in garlic and flour and continue to cook 2 more minutes. Slowly stir in milk and bring to a simmer until thickened. Once the sauce thickens, immediately remove from heat.
  • Stir in 2 cups cheddar cheese until melted and smooth. Then stir in diced tomatoes, diced green chilis, diced cooked chicken, and drained spaghetti. Season with salt and pepper to taste.
  • Pour pasta into a lightly greased 9x13 pan. Top with remaining 1 cup cheddar cheese. Bake in the preheated oven for 25 to 30 minutes until cheese is warm and bubbly and starting to brown.
Notes
Instead of cheddar cheese, mix things up with Monterey jack, mozzarella, pepper jack, or a Mexican cheese blend. 

Nutrition

Calories: 556kcal | Carbohydrates: 44g | Protein: 28g | Fat: 30g | Saturated Fat: 17g | Cholesterol: 95mg | Sodium: 870mg | Potassium: 497mg | Fiber: 3g | Sugar: 8g | Vitamin A: 1056IU | Vitamin C: 31mg | Calcium: 592mg | Iron: 2mg
Course: Main Dish
Cuisine: American
Keyword: Chicken Spaghetti
Subscribe
Notify of
20 Comments
Most Voted
Newest Oldest
Inline Feedbacks
View all comments
Rhonda
October 20, 2020 5:37 pm

We tried this recipe last night & it was totally awesome. Creamy & enjoyed the combined flavors of all the ingredients. Will definitely make again! Thank you for sharing. 😋💜

August 25, 2020 10:55 am

5 stars
This casserole is very tasty and I will certainly make it again. Next time I think I will add sliced mushrooms at a suggestion from my son, who also enjoyed it.

December 9, 2020 12:40 pm

Going to make this for my son and his family tomorrow. Thank you! You are by far my favorite online chef and can’t wait for your cook book.

Dawn
January 6, 2021 10:07 am
Reply to  Mona

Definitely my favorite online chef too!!! thankyou!

October 15, 2020 11:11 pm

5 stars
I like the way she explains everything!!!

August 27, 2020 5:27 pm

Haven’t made this recipe yet, but can’t wait to try it. Just love all of your recipes; your instructions are so easy to follow! I am so thankful to have found you on the internet. Thank you!

Melissa F. Kline
August 18, 2020 3:59 pm

Made this tonight for dinner. It was a hit. I love that your sauce is from scratch.

Marcia Zachem
January 19, 2021 7:15 pm

My family actually uses a can of undiluted Campbell’s Tomato soup into the roux also. Sounds weird but everyone loves it!

Kathy Cole Hutchison
January 8, 2021 9:04 pm

My husband LOVES spaghetti so when I saw the Creamy Chicken Spaghetti recipe I knew we needed to try it. It was one of the best recipes I have ever made. It is super creamy, super flavors and super easy. We have enough left over for tomorrow night. Already looking forward to it. Thank you for this delicious recipe. I will be trying more of your recipes soon.

Sherron Gorka
January 8, 2021 1:18 pm

Dear SAHC,
Ijust love your terrific recipes!!! Everything I have prepared has been a big hit. Your manner of showing and explaining it all is so clear and done with your sweet personality. Love the food…love you!!

Veronica Morales
January 6, 2021 6:45 pm

5 stars
Gre! recipe! I didn’t have cheddar cheese and I use the Mexican blend type. It was delicious, just like all your recipes!

Elva Delaune
January 2, 2021 4:46 pm

5 stars
Very good easy recipes! Thank you!

November 8, 2020 4:09 pm

3 stars
It’s good but kind of dry. Use less spaghetti noodles. Add mote milk.

Bernadette Repko
January 6, 2021 7:33 am
Reply to  Kathy

The best thing to do when cooking any kind of pasta is to save a cup–or a couple of ladles–of the “salted cooking water” to use when you’re tossing the pasta with your sauce. It helps to create a silkier texture. So, before draining your pasta, ladle out some starchy pasta water and you’ll be all set. Or, simply use a spider or small strainer to remove your pasta from the water and place it directly into your sauce. My family is Italian and this is what we’ve always done. Hope this helps!

Gigi Boldon
September 25, 2020 2:33 am

5 stars
THIS was Really GOOD!! Followed recipe to a T, only thing I would add next time is…MORE Chicken!! Like maybe 3 cups instead of 2. I will be making this again!

August 28, 2020 12:41 pm

Made it for my family today. Everyone loved it. Thanks for this yummiest recipe.

lauren fesik
August 20, 2020 7:26 am

5 stars
I made this recipe 2 days ago, and it was sooo good we could not stop eating it. Also, the leftovers were even better!! One sidenote…the prep time was a lot longer than 15 minutes 😒

Become a Member

Sign up to save recipes in you recipe book, write reviews and more!

Sign up with

By signing up you agree to thestayathomechef.com's terms of use and privacy policy.