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Monterey Chicken Spaghetti: A Cheesy, Comforting Casserole Classic


  • Author: Norah
  • Total Time: 55 minutes
  • Yield: 6-8 servings 1x
  • Diet: Gluten Free

Description

A creamy, cheesy baked pasta loaded with tender chicken, spinach, garlic, and topped with crispy French fried onions for the perfect comforting family dinner.


Ingredients

Scale
  • 12 oz spaghetti

  • 2 chicken breasts, cooked and chopped

  • 1 cup Monterey Jack cheese, shredded

  • ½ cup Parmesan cheese, shredded

  • 1 cup sour cream

  • 1 egg, beaten

  • 10 oz frozen chopped spinach, thawed and drained

  • 3 cloves garlic, minced (or 1 tablespoon garlic powder)

  • 2 cans (10 oz each) cream of chicken soup

  • 1 teaspoon onion powder

  • 6 oz French fried onions, divided (about 1 standard can)


Instructions

  1. Preheat oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish.

  2. Cook spaghetti according to package directions. Drain and set aside.

  3. Mix the base: In a large mixing bowl, combine sour cream, beaten egg, cream of chicken soup, garlic, onion powder, Monterey Jack cheese, Parmesan cheese, chopped spinach, and chopped cooked chicken.

  4. Add cooked spaghetti to the mixture and stir until well combined.

  5. Stir in half of the French fried onions.

  6. Pour mixture into the prepared baking dish and spread evenly.

  7. Top with remaining French fried onions.

  8. Bake uncovered for 30–35 minutes, or until heated through and bubbling.

Notes

Substitute rotisserie chicken for a faster prep.

You can use fresh spinach (lightly sautéed) instead of frozen.

For extra richness, add a little shredded cheddar or cream cheese.

Great for meal prep—freezes and reheats well.

  • Prep Time: 20 minutes
  • Cook Time: 35 minutes
  • Category: Main Dish, Casserole
  • Method: Boiling, Baking
  • Cuisine: American

Keywords: chicken spaghetti, baked pasta, creamy casserole, easy dinner, comfort food