Indulge in this delightful Chicken Spaghetti, a belly-warming baked casserole that’s easy to whip up for a quick weeknight dinner. This is the ultimate comfort food!
Ingredients
For the Topping
- 2 cups breadcrumbs or crushed crackers
- 2 tablespoons unsalted butter melted (¼ stick)
- ¼ teaspoon dried basil
- ¼ teaspoon kosher salt
- ¾ cup shredded cheese such as Cheddar, Mexican, Gruyere or a blend
For the Casserole
- 2 tablespoons olive oil
- ½ yellow onion finely diced
- 2 cloves garlic minced
- 32 ounces chicken broth or stock (1 carton)
- 1¾ cups water
- 1½ teaspoons kosher salt
- ½ teaspoon ground black pepper
- 16 ounces dry spaghetti broken into thirds (1 box)
- 2 tablespoons chopped fresh basil plus more for garnish
- 10 ounces diced tomatoes and green chilies (1 can)
- 10 ounces cream of mushroom soup (1 can)
- 4 cups shredded cooked chicken rotisserie is fine
- 1¼ cup shredded cheese such as Cheddar, Mexican, Gruyere or a blend
Recommended Equipment
- 9×13 Baking Pan
- Dutch Oven
Instructions
- Adjust oven rack to middle position and preheat oven to 350°F. Spray a 9×13-inch baking pan with nonstick cooking spray.
- Prepare the crumb topping: Mix together all ingredients in a small bowl until well-combined. Set aside.2 cups breadcrumbs,2 tablespoons unsalted butter,¼ teaspoon dried basil,¼ teaspoon kosher salt,¾ cup shredded cheese
- Add the oil and onion to a large Dutch oven. Set the pot over medium heat and sauté, stirring occasionally, until the onion is translucent and has softened.2 tablespoons olive oil,½ yellow onion
- Add the minced garlic and cook for an additional 30 seconds, stirring often.2 cloves garlic
- Add the chicken broth and deglaze (click for how-to) the pan.32 ounces chicken broth or stock
- Add the water, salt, pepper, stir and bring to a boil.1¾ cups water,1½ teaspoons kosher salt,½ teaspoon ground black pepper
- Add the dry spaghetti (broken into thirds), reduce the heat to medium-low, and cook the spaghetti to al dente (according to package directions).16 ounces dry spaghetti
- Add the basil, tomatoes, cream of mushroom soup, chicken, and 1¼ cups cheese.2 tablespoons chopped fresh basil,10 ounces diced tomatoes and green chilies,10 ounces cream of mushroom soup,4 cups shredded cooked chicken,1¼ cup shredded cheese
- Bring the mixture just to a low boil and remove it from the heat.
- Pour the chicken spaghetti into the prepared baking pan and sprinkle the topping mixture evenly over the top.
- Bake at 350°F for 30-40 minutes, or until hot throughout and cheese is melted. If the cheese is browning too quickly, tent with sprayed aluminum foil.
- Transfer the pan to a cooling rack and let rest for 5 minutes before serving.
- Garnish with fresh chopped basil if desired.

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