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A golden-brown chicken spaghetti casserole sits freshly baked in a white ceramic dish, showcasing melted cheese, tender chicken pieces, and a creamy sauce with visible herbs and a perfectly crisp top crust.

Ultimate Chicken Spaghetti Casserole

A comforting and delicious casserole that combines tender shredded chicken, perfectly cooked spaghetti, and a creamy, cheesy sauce. This crowd-pleasing dish is easy to prepare and guaranteed to become a family favorite that brings everyone together at the dinner table.
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Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Servings: 6
Course: Main Course
Cuisine: American
Calories: 485
Ingredients Equipment Method Notes

Ingredients
  

  • 2 cups cooked, shredded chicken
  • 1 pound spaghetti noodles
  • 1 cup sour cream
  • 1 cup chicken broth
  • 2 cups shredded cheddar cheese
  • 1/2 cup grated Parmesan cheese
  • 1/2 cup diced green onions
  • 1 cup crushed buttery crackers optional
  • Cooking spray or butter for greasing

Equipment

  • 9x13 inch baking dish
  • Large mixing bowl
  • Pasta pot
  • Cheese grater
  • Aluminum foil
  • Colander
  • Measuring cups
  • Mixing Spoon

Method
 

  1. Preheat the oven to 350°F (175°C)
  2. Cook spaghetti according to package instructions, then drain and set aside
  3. Shred chicken into bite-sized pieces (rotisserie chicken recommended)
  4. In a large mixing bowl, combine cream of chicken soup, cream of mushroom soup, and sour cream
  5. Stir in chicken broth until the mixture is smooth
  6. Add shredded chicken and cooked spaghetti, mixing thoroughly
  7. Transfer the mixture to a greased 9x13 inch baking dish
  8. Top with shredded cheddar and Parmesan cheese
  9. Cover with aluminum foil and bake for 25 minutes
  10. Remove foil and bake an additional 10-15 minutes until cheese is golden and bubbly
  11. Optional: Sprinkle crushed crackers on top for extra crunch
  12. Let rest for 10 minutes before serving

Notes

Pro Tips: Use rotisserie chicken for maximum flavor. Don't overcook the pasta as it will continue cooking in the oven. For a spicier version, add diced jalapeños or red pepper flakes. Refrigerate leftovers in an airtight container for up to 4 days. Can be frozen for up to 3 months. Reheat in oven at 350°F for best texture.