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    Home » Recipes » Entrees

    Skinny Cheesy Chicken Spaghetti

    by Mindy Boyd · Published: Feb 13, 2022 · Updated: Dec 10, 2024

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    ⏲️ 50 minutes mins
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    Are you looking for a Cheesy Chicken Spaghetti Casserole that isn’t quite as indulgent as the classic recipe? Then you’ve come to the right place!

    We use nonfat half & half, 1/3 less fat cream cheese and 2% milk cheddar cheese so we can enjoy this tasty pasta dish and not feel guilty. Plus, we use a rotisserie chicken to make this dish quick and easy.

    Our homemade chicken spaghetti casserole features tender chicken and pasta with onions, bell peppers, and garlic in a cheesy and creamy sauce. It is topped with more cheese and baked to perfection. Serve this dish with a small side salad and slice of garlic bread for a complete meal the whole family is sure to adore. 

    Skinny Baked Chicken Spaghetti - tender chicken and spaghetti in a cream cheese sauce is baked in the oven and topped with cheddar cheese.
    Jump to:
    • Why you’ll love this easy chicken spaghetti recipe
    • Ingredients
    • Ingredient Notes
    • How to make it
    • Cooking Tip
    • Variations
    • Storage & Reheating
    • More great recipes that are on the lighter side:
    • Cheesy Chicken Spaghetti Casserole (lighter version)
    Skinny Baked Chicken Spaghetti - tender chicken and spaghetti in a cream cheese sauce is baked in the oven and topped with cheddar cheese.

    Why you’ll love this easy chicken spaghetti recipe

    • It is the ultimate comfort food, even lightened up. 
    • You can have it in the oven in about 15 minutes making it a great option for busy nights.
    • This recipe can be made with leftover chicken.
    • While this is a lightened up version you can use regular ingredients if you aren’t concerned with calories.  
    Skinny Baked Chicken Spaghetti - tender chicken and spaghetti in a cream cheese sauce is baked in the oven and topped with cheddar cheese.

    Ingredients

    See recipe card for exact amounts. 

    Ingredient Notes

    pasta – we like regular spaghetti noodles. Thin spaghetti, whole wheat spaghetti or even a different cut of pasta can can be used. Just remember to cook it for the shortest time specified on the package. I would not recommend small pasta like orzo or ditalini. I think rotini would be a fun shape to use in this recipe, especially if you have kids. 

    shredded chicken – a rotisserie chicken from the grocery store is perfect. Or you can make your own chicken or use leftovers. 

    onions – inexpensive yellow onions work great. White onion or red onion are also great options. 

    bell peppers – we use about half of a green bell pepper and about half of a red bell pepper. You will need about 1 whole bell pepper. Since green peppers are less expensive than red peppers you can use one whole green pepper. Sometimes we do this if we don’t have plans for using the other halves of the peppers in another recipe.

    chicken broth – I always use the lower sodium type. 

    half & half – to make this more figure friendly we use fat free. 

    cream cheese – in keeping with the lighter version I like 1/3 less fat. Full fat or fat free can be used. 

    shredded cheese – we use 2% milk sharp cheddar cheese.

    flour – this helps thicken our cheesy sauce. 

    olive oil – extra virgin or light tasting, whatever you have on-hand. Canola oil, corn oil or even butter can be used. 

    garlic – I like the minced garlic that comes in a jar. Fresh garlic is great too. 

    black pepper – just a bit of pepper for flavor, we don’t use extra salt in this dish because there is quite a bit in the broth and in the cheese. You can add some if you like.

    Skinny Baked Chicken Spaghetti - tender chicken and spaghetti in a cream cheese sauce is baked in the oven and topped with cheddar cheese.

    How to make it

    1. Preheat the oven to 350°. Bring a large pot of water to a boil and  cook the spaghetti to al dente (the shortest cooking time specified on the package directions, usually 9 minutes).
    2. Heat the olive oil in a large skillet over medium-heat, add onion and bell peppers and cook until tender, about 4 – 5 minutes. Add garlic and cook for 1 minute. Add flour and pepper; cook for 1 minute. Add chicken stock and whisk until combined, be sure to get all the lumps out. Add half & half and cream cheese and whisk until cream cheese is melted and the mixture is smooth. Heat until bubbly and thick, 2-3 minutes.
    3. Stir in cooked spaghetti and chicken, sprinkle cheese over top of the casserole and bake in the oven until bubbly and the cheese is melted, about 15 – 18 minutes. Let stand for 5 minutes before serving.

    Cooking Tip

    If you don’t have an oven proof skillet then pour the mixture into a casserole dish, baking dish, or large pot such as a Dutch oven. I would coat it with cooking spray for easier clean up. I have read before that you can put aluminum foil on a plastic handle to make it oven proof, this is NOT recommended. There is a great article about it at World of Pans.

    Skinny Baked Chicken Spaghetti - tender chicken and spaghetti in a cream cheese sauce is baked in the oven and topped with cheddar cheese.

    Variations

    • To use boneless skinless chicken breasts or chicken thighs instead of shredded chicken you will need to cook the chicken first. Just add a little oil or nonstick cooking spray in the skillet first, cook the chicken thoroughly, transfer it to a plate and then start the recipe. You can use the same skillet. 
    • Use whatever type of cheese you like.
    • To give this dish a spicy kick add in a can of green chilies, or a dash of cayenne pepper. You can also swap some pepper jack cheese for some of the cheddar cheese. 

    Storage & Reheating

    Store leftovers in an airtight container for up to 3 days. Reheat individual servings in the microwave. 

    Skinny Baked Chicken Spaghetti - tender chicken and spaghetti in a cream cheese sauce is baked in the oven and topped with cheddar cheese.

    More great recipes that are on the lighter side:

    • Skinny Beef Enchiladas
    • Skillet Beef Tagine
    • One Pan Beef Stroganoff
    • Lighter Chicken Gnocchi Soup
    • Healthier Slow Cooker Chicken Stew
    • Light Beef Stroganoff

    Yes, two different recipes for beef stroganoff! One has onions and one doesn’t. There is a one skillet version and one we put over cooked pasta. They are both delicious!

    Half of the Cheesy Chicken Spaghetti Casserole is visible in a large skillet, after it came out of the oven.
    One serving pf Cheesy Chicken Spaghetti Casserole on a white plate.

    Cheesy Chicken Spaghetti Casserole (lighter version)

    Mindy Boyd
    Cheesy Chicken Spaghetti Casserole: A guilt-free twist on a classic, delivering savory goodness without the extra calories. Indulge smartly!
    5 from 18 votes
    Print – Email Required Pin Recipe Save Recipe Saved Recipe
    Prep Time 15 minutes mins
    Cook Time 30 minutes mins
    Standing Time 5 minutes mins
    Total Time 50 minutes mins
    Course Main Course
    Cuisine American
    Servings 6 servings

    Ingredients
      

    • 8 ouncesoz spaghetti
    • 4 tbsp olive oil
    • 1/2 cup chopped onion
    • 1/2 cup chopped green bell pepper
    • 1/2 cup chopped red bell pepper
    • 2 tsp minced garlic
    • 4 tsp flour
    • 1/2 tsp pepper
    • 1 can low sodium chicken broth 14.5 ounce
    • 1 cup fat free half & half
    • 4 oz 1/3 less fat cream cheese cut into small pieces 1/2 package
    • 3 cups cooked chicken
    • 1 cup shredded cheddar cheese 2% milk
    Get Recipe Ingredients

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    Instructions
     

    • Heat oven to 350°.
    • In a large sauce pan cook pasta for the shortest time directed on the package, usually 9 minutes.
      8 ouncesoz spaghetti
    • Heat olive oil in a large skillet over medium-heat, add onion and peppers and cook until tender, about 4 – 5 minutes. Add garlic and cook for 1 minute. Add flour and pepper; cook for 1 minute. Add chicken broth and whisk until combined, be sure to get all the lumps out. Add half & half and cream cheese and whisk until cream cheese is melted and the mixture is smooth. Heat until bubbly and thick, 2-3 minutes.
      4 tbsp olive oil, 1/2 cup chopped onion, 1/2 cup chopped green bell pepper, 1/2 cup chopped red bell pepper, 2 tsp minced garlic, 4 tsp flour, 1/2 tsp pepper, 1 can low sodium chicken broth, 1 cup fat free half & half, 4 oz 1/3 less fat cream cheese cut into small pieces
    • Stir in spaghetti and chicken, top with cheese and bake in the oven until bubbly and the cheese is melted, about 15 – 18 minutes. Let stand 5 minutes before serving.
      3 cups cooked chicken, 1 cup shredded cheddar cheese

    Notes

    If you don’t have an oven proof skillet then pour the mixture into a casserole dish, baking dish, or large pot such as a Dutch oven. I would coat it with cooking spray for easier clean up. I have read before that you can put aluminum foil on a plastic handle to make it oven proof, this is NOT recommended. 
    Did you make this recipe? We would love it if you would leave us a comment and ⭐️⭐️⭐️⭐️⭐️ review below!
     
    Nutritional information is approximate.
     
    See tips, notes, and suggestions in the post above.
     
    Bookmark this page to find it quickly when you are ready to make this recipe!

    Nutrition Facts

    Calories: 520kcal | Carbohydrates: 41g | Protein: 32g | Fat: 25g | Saturated Fat: 8g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 11g | Cholesterol: 84mg | Sodium: 308mg | Potassium: 525mg | Fiber: 2g | Sugar: 6g | Vitamin A: 775IU | Vitamin C: 27mg | Calcium: 227mg | Iron: 2mg
    Tried this recipe?Let us know how it was with a comment below.

    Recipe adapted from 5 Boys Baker.

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