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A photo of a golden-brown chicken spaghetti casserole just out of the oven. The casserole is topped with melted cheese and chopped parsley. A portion of the casserole is scooped out onto a plate beside garlic bread and a small green salad. The marble surface adds a clean backdrop.

Chicken Spaghetti Casserole

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This Chicken Spaghetti Casserole is creamy, cheesy, and made with simple ingredients like cooked chicken, spaghetti, and pantry staples. A comforting, crowd-friendly dish perfect for weeknight dinners or meal prep.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6 servings
Course: Dinner
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

  • 3 cups cooked chicken shredded or chopped
  • 12 oz spaghetti cooked and drained
  • 1 can cream of chicken soup 10.5 oz
  • ½ cup sour cream or softened cream cheese
  • 2 cups cheddar cheese shredded, divided
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • ½ teaspoon salt to taste
  • ½ teaspoon black pepper to taste
  • 1 cup diced bell peppers optional
  • chopped parsley optional, for garnish

Equipment

  • Large pot For boiling the spaghetti
  • Mixing Bowl For combining chicken and sauce
  • Casserole Dish To bake the assembled casserole

Method
 

  1. Preheat oven to 350°F (175°C) and grease a 9x13-inch baking dish.
  2. Cook spaghetti until al dente, then drain and set aside.
  3. In a large bowl, mix cream of chicken soup, sour cream, garlic powder, onion powder, salt, pepper, and 1 cup of shredded cheese.
  4. Stir in the cooked chicken and optional bell peppers, then fold in the cooked spaghetti.
  5. Transfer mixture to the greased casserole dish. Top with remaining cheese.
  6. Bake for 25–30 minutes, or until hot and bubbly. Garnish with chopped parsley if using.

Notes

  • Use rotisserie chicken to save time.
  • Add steamed broccoli, mushrooms, or peas for more vegetables.
  • To freeze: Assemble, cover tightly, and freeze before baking.

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