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My Kids Always Want Seconds Of This Cheesy Chicken Spaghetti

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This cheesy chicken spaghetti is the perfect way to use leftover chicken or rotisserie chicken in a weeknight meal that is cozy and full flavor.

cheesy chicken spaghetti on a plate and rolled around a fork

Tips For Making This Cheesy Chicken Spaghetti

  • Use any pasta of your choice, following the package instructions for cooking.
  • Customize the sauce by adding black beans or corn for extra flavor and texture.
  • Don’t have fresh onions and garlic? Use garlic powder and onion powder for a quick alternative.
  • Experiment with different types of cheese for the topping, like mozzarella or cheddar, for a unique twist.
  • Prepare the casserole in advance and refrigerate until ready to bake for a convenient meal planning option.

For more ways to use what you have check out these videos:

MORE LEFTOVER FRIENDLY RECIPES TO TRY

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cheesy chicken spaghetti on a fork

Cheesy Chicken Spaghetti Casserole

  • Author: Maria Ronan
  • Total Time: 1 hour 10 minutes
  • Yield: 8 1x
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Description

Indulge in the delightful flavors of our Chicken Spaghetti Casserole – a creamy, cheesy, and comforting dish that’s simple to prepare. This savory casserole combines tender pasta, succulent chicken, and a rich, homemade sauce with a hint of heat from diced tomatoes and green chilies. It’s a satisfying family meal that’s budget-friendly and perfect for busy weeknights. Give it a try and enjoy a cozy, homemade dinner that everyone will love.

Ingredients

Scale
  • 8 oz pasta (of your choice)
  • 4 tbsp butter
  • 1 small onion, diced
  • 2 cloves garlic, minced
  • 3 tbsp all-purpose flour
  • 1 1/2 cups chicken broth
  • 3/4 cup milk
  • 4 oz cream cheese, softened
  • 1 cup cheddar cheese, shredded
  • 1 can (14 oz) diced tomatoes with green chilies (or use fire-roasted tomatoes and canned green chilies as a substitute)
  • 1 cup cooked chicken, diced
  • 1 cup mozzarella cheese, shredded (for topping)
  • Salt and pepper to taste

Instructions

  1. Cook the pasta according to the package instructions. Drain and set aside.

  2. In a large saucepan over medium-low heat, melt the butter. Add the diced onion and cook until softened, about 4-5 minutes.

  3. Stir in the minced garlic and cook for an additional minute until fragrant.

  4. Add the flour to create a roux, coating the onions and garlic evenly.

  5. Gradually pour in the chicken broth while stirring constantly until the sauce thickens.

  6. Pour in the milk and continue to stir until the sauce is well combined and thickened.

  7. Add the softened cream cheese and cheddar cheese, stirring until fully incorporated into the sauce.

  8. Mix in the diced tomatoes with green chilies (or your substitute) and the cooked diced chicken. Season with salt and pepper to taste.

  9. Fold in the cooked pasta, ensuring it’s well coated with the creamy sauce.

  10. Transfer the mixture to a 13×9-inch baking dish.

  11. Sprinkle mozzarella cheese on top.

  12. Cover the dish with foil and refrigerate until ready to bake.

  13. Preheat your oven to 350°F (175°C).

  14. Bake the casserole for approximately 35 minutes or until heated through and the cheese is bubbly.

  15. Serve hot and enjoy your creamy Chicken Spaghetti Casserole!

Notes

Customize this recipe by adding black beans, corn, or other favorite ingredients to make it your own.

  • Prep Time: 20
  • Cook Time: 50

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Maria Ronan is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Links on this site may include affiliate links to Amazon and its affiliate sites on which the owner of this website will make a referral commission. Thank you for supporting Meals With Maria! My videos and website are for entertainment purposes only. Any information related to food, food safety, cooking, recipes, etc. are my opinions only. Maria Ronan is not liable and/or responsible for any advice, services, or product you obtain through this video and website.