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Ultimate Monterey Chicken Spaghetti Recipe - Easy Cheesy Casserole

This mouthwatering Monterey chicken spaghetti combines tender chicken, al dente pasta, and a creamy cheese sauce that will have everyone asking for seconds. Perfect for busy weeknights or feeding a crowd, this comforting casserole comes together in just one dish for minimal cleanup.
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Prep Time 20 minutes
Cook Time 25 minutes
Total Time 45 minutes
Servings: 6 servings
Calories: 480
Ingredients Method Notes

Ingredients
  

Ingredients
  • 1 lb spaghetti or linguine
  • 2 cups cooked chicken breast, shredded or diced
  • 1 can (10.5 oz) cream of mushroom soup
  • 1 cup sour cream
  • 1 cup shredded Monterey Jack cheese
  • 1 cup shredded cheddar cheese
  • ½ cup grated Parmesan cheese
  • ½ cup diced green bell pepper
  • ½ cup diced onion
  • 2 cloves garlic, minced
  • 1 tsp Italian seasoning
  • ½ tsp black pepper
  • ½ tsp paprika
  • ¼ cup breadcrumbs (optional, for topping)
  • 2 tbsp butter, melted

Method
 

Instructions
  1. Preheat your oven to 375°F (190°C). Cook the spaghetti according to package directions until al dente. Drain well and set aside.
  2. While pasta cooks, prepare the sauce mixture. In a large bowl, combine cream of mushroom soup, sour cream, Monterey Jack cheese, cheddar cheese, Parmesan cheese, green bell pepper, onion, garlic, Italian seasoning, black pepper, and paprika.
  3. Add the cooked spaghetti and shredded chicken to the bowl and mix thoroughly until everything is well coated with the creamy cheese sauce.
  4. Transfer the mixture to a 9x13-inch baking dish and spread evenly. If using the breadcrumb topping, combine breadcrumbs with melted butter and sprinkle over the top.
  5. Bake for 20-25 minutes, or until the cheese is bubbly and the edges are golden brown. Let rest for 5 minutes before serving.

Notes

For best results, use freshly shredded cheese rather than pre-shredded - it melts more smoothly and creates a creamier sauce. You can also add a dash of hot sauce or red pepper flakes if your family enjoys a little heat.