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A yellow baking dish filled with chicken spaghetti casserole, topped with melted cheese and garnished with parsley.
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5 from 3 votes

Chicken Spaghetti Casserole

Whip up a comforting chicken spaghetti casserole in no time. Perfect for busy weeknights, this dish delivers seriously satisfying flavor in every forkful.
Prep Time30 minutes
Cook Time45 minutes
Resting Time5 minutes
Total Time1 hour 20 minutes
Course: Main Course
Cuisine: American
Keyword: casserole, chicken, pasta
Servings: 8

Ingredients

  • 12 Ounces spaghetti dried
  • 2 Tablespoons salted butter
  • ½ Cup onion diced
  • ½ Cup celery diced
  • ½ Cup bell pepper diced, red or green
  • 2 Cans condensed cream of chicken soup or cream of mushroom soup, 10½-Ounce cans
  • 1 Can Rotel tomatoes
  • 1 Cup chicken broth
  • ½ Cup sour cream
  • 3 Cups chicken cooked and chopped, or Rotisserie chicken
  • 1 Cup cheddar cheese shredded
  • 1 Cup monterey jack or mozzarella cheese, shredded
  • parsley freshly chopped, to serve

Instructions

  • Preheat your oven to 350°F and lightly grease a baking dish.

Prepare the Spaghetti:

  • Bring a large pot of salted water to a boil.
  • Add the spaghetti and cook until al dente according to the package instructions. Drain and set aside.

Make the Sauce:

  • In a large skillet, melt the butter over a medium heat.
  • Add the diced onion, celery, and pepper. Sauté for 4 to 5 minutes or until softened and fragrant.
  • Add the condensed cream of chicken or cream of mushroom soup, Rotel, chicken broth, and sour cream to the vegetables. Stir until smooth.
  • Add the chopped chicken, and ½ cup of cheddar cheese and ½ cup monterey jack cheese to the sauce mixture. Stir until everything is evenly combined.
  • Now add the noodles and toss to coat.

Bake the Casserole:

  • Pour the mixture into the prepared baking dish and spread it out evenly with a spatula.
  • Sprinkle the rest of the shredded cheese evenly over the top.
  • Put the dish in the preheated oven and bake for 25 to 30 minutes, or until the casserole is bubbly and the cheese is melted and golden brown.
  • Remove the casserole from the oven and let it cool for 5 minutes.
  • Sprinkle with chopped fresh parsley and serve.

Notes

Don’t overcook the spaghetti: Cook the spaghetti until it’s just al dente. Since it will bake in the casserole, you don’t want it to get too soft.
Drain the pasta well: Drain it well before adding it to the casserole mixture, to prevent it getting watery.
Layer the cheese: For a gooey, cheesy casserole, layer some cheese into the middle of the casserole along with the topping. This creates a cheesy, melty interior and a crispy, golden top.

Nutrition

Calories: 452kcal | Carbohydrates: 42g | Protein: 19g | Fat: 23g | Saturated Fat: 11g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 7g | Trans Fat: 0.1g | Cholesterol: 65mg | Sodium: 876mg | Potassium: 364mg | Fiber: 2g | Sugar: 4g | Vitamin A: 975IU | Vitamin C: 18mg | Calcium: 265mg | Iron: 2mg

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