Savor the Creamy Delights of Monterey Chicken Spaghetti Casserole
Embark on a flavor adventure with this Monterey Chicken Spaghetti Casserole, a dish that combines creamy textures and hearty ingredients for a family-pleasing meal. With its blend of tender chicken, smooth spaghetti, and rich Monterey Jack cheese, topped with crunchy fried onions, this casserole is a guaranteed hit.

Perfect for both a weeknight dinner and special occasions, this casserole is loved by kids and adults alike, even the pickiest eaters. Whether you're looking for a comforting meal to warm up your evening or need a reliable crowd-pleaser for a potluck, this recipe has got you covered.
Ideal for meal prepping, this dish also makes a fantastic freezer meal, ensuring that a delicious dinner is always just an oven preheat away. Ready to create a new favorite in your dinner rotation? Let's get started!
Creamy and Hearty: Your New Go-To Chicken Casserole
This Monterey Chicken Spaghetti Casserole isn't just satisfying—it's packed with flavors that meld together perfectly in the oven. Here's how to bring this delicious casserole to life, complete with tips to make sure it comes out perfectly every time.
Pro Tips for the Perfect Chicken Casserole:
- Al Dente Pasta: Cook your spaghetti just to al dente to prevent it from becoming mushy during baking.
- Thorough Draining: Make sure the spinach is well-drained to avoid a watery casserole.
- Layering Flavors: Adding layers of cheese and onions not only adds depth but also texture to the dish.
- Adjust Seasonings: Taste your chicken mixture before baking and adjust the seasonings as needed.
- Golden Topping: Bake until the top is golden and crispy for that perfect crunchy finish.

Monterey Chicken Spaghetti Casserole Recipe:
- Preparation time: 20 minutes
- Cooking time: 50 minutes
- Servings: 8
- Equipment: 9x13-inch baking dish
This dish is a delightful mix of comfort food ingredients that are sure to comfort and satisfy.
Ingredients:
- 12 oz dried spaghetti
- 4 cups chopped cooked chicken
- 1 (16 oz) container sour cream
- 2 (10.5 oz) cans unsalted cream of chicken soup
- 1 (10 oz) package frozen spinach, thawed and thoroughly drained
- 2 cups shredded Monterey Jack cheese, divided
- 2 garlic cloves, minced
- 1 (6 oz) can French's French Fried Onions, divided
Directions:
- Preheat and Prep: Heat your oven to 350°F and spray a 9x13-inch pan with cooking spray.
- Cook Spaghetti: Boil the spaghetti according to package instructions until al dente, then drain.
- Combine Ingredients: In a large bowl, mix the cooked chicken, cream of chicken soup, sour cream, spinach, 1 cup of cheese, minced garlic, and half of the fried onions.
- Add Spaghetti: Stir the cooked spaghetti into the chicken mixture until well combined.
- Assemble the Casserole: Transfer the mixture to the prepared baking dish. Sprinkle the remaining cheese and fried onions on top.
- Bake: Place in the oven and bake for 40 to 50 minutes, until the top is golden brown and bubbly.
Ready to Relish!
This Monterey Chicken Spaghetti Casserole offers a comforting taste with every bite, making it the perfect dish for any occasion. Its creamy texture and savory flavors are sure to make it the most requested dinner in your home, just as it is in many others. Enjoy the ease of preparation and the joy of a hearty meal that brings everyone to the table.
Print📖 Recipe
Monterey Chicken Spaghetti
This dish is a delightful mix of comfort food ingredients that are sure to comfort and satisfy.
- Total Time: 1 hour 10 minutes
- Yield: 8 1x
Ingredients
- 12 oz dried spaghetti
- 4 cups chopped cooked chicken
- 1 (16 oz) container sour cream
- 2 (10.5 oz) cans unsalted cream of chicken soup
- 1 (10 oz) package frozen spinach, thawed and thoroughly drained
- 2 cups shredded Monterey Jack cheese, divided
- 2 garlic cloves, minced
- 1 (6 oz) can French's French Fried Onions, divided
Instructions
- Preheat and Prep: Heat your oven to 350°F and spray a 9x13-inch pan with cooking spray.
- Cook Spaghetti: Boil the spaghetti according to package instructions until al dente, then drain.
- Combine Ingredients: In a large bowl, mix the cooked chicken, cream of chicken soup, sour cream, spinach, 1 cup of cheese, minced garlic, and half of the fried onions.
- Add Spaghetti: Stir the cooked spaghetti into the chicken mixture until well combined.
- Assemble the Casserole: Transfer the mixture to the prepared baking dish. Sprinkle the remaining cheese and fried onions on top.
- Bake: Place in the oven and bake for 40 to 50 minutes, until the top is golden brown and bubbly.
- Prep Time: 20 minutes
- Cook Time: 50 minutes






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