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Creamy Monterey Chicken Spaghetti Casserole

A close-up of a serving of Monterey chicken spaghetti with shredded chicken and a bubbly, cheesy topping.
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Make this easy Monterey Chicken Spaghetti Casserole for a comforting, cheesy weeknight dinner. This family favorite combines tender chicken, spaghetti, and rich Monterey Jack cheese in one simple bake.

Ingredients

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  • 1 pound spaghetti, cooked according to package directions
  • 2 cups cooked, shredded chicken breast
  • 1 tablespoon butter
  • 1 small onion, chopped
  • 2 cloves garlic, minced
  • 1 (10.5 ounce) can condensed cream of chicken soup
  • 1 cup sour cream
  • 1/2 cup milk
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon garlic powder
  • 1 (10 ounce) package frozen chopped spinach, thawed and squeezed dry
  • 2 cups shredded Monterey Jack cheese, divided
  • 1/2 cup French fried onions (for topping)

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit. Lightly grease a 9×13 inch baking dish.
  2. Cook the spaghetti according to package directions until al dente. Drain well and set aside.
  3. In a large skillet over medium heat, melt the butter. Add the chopped onion and cook until softened, about 5 minutes. Add the minced garlic and cook for 1 minute more until fragrant.
  4. In a large bowl, combine the cooked spaghetti, shredded chicken, the onion and garlic mixture, cream of chicken soup, sour cream, milk, salt, pepper, and garlic powder. Mix until everything is evenly coated.
  5. Stir in the thawed and squeezed dry spinach.
  6. Fold in 1 1/2 cups of the Monterey Jack cheese until just combined.
  7. Spread the spaghetti mixture evenly into the prepared baking dish.
  8. Sprinkle the remaining 1/2 cup of Monterey Jack cheese over the top of the casserole.
  9. Bake for 20 minutes, or until the casserole is hot and bubbly.
  10. Remove from the oven and top evenly with the French fried onions. Return to the oven and bake for an additional 5 minutes, or until the onions are golden brown and crisp.
  11. Let the Monterey Chicken Spaghetti Casserole rest for 5 minutes before serving.

Notes

  • You can substitute rotisserie chicken for the cooked, shredded chicken to save time on a weeknight.
  • For a tangier flavor, substitute 1/2 cup of the sour cream with plain Greek yogurt.
  • This dish freezes well; assemble the casserole completely, cover tightly, and freeze before baking. Thaw overnight in the refrigerator before baking as directed, adding 10-15 minutes to the initial bake time.

Nutrition

Find it online: https://delicerecipe.com/monterey-chicken-spaghetti-casserole-recipe/