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Chicken Spaghetti Casserole

Published: Apr 19, 2025 by Margie · This post may contain affiliate links · Leave a Comment

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Savor the Ultimate Comfort: Chicken Spaghetti Casserole

Dive into a world of cozy comfort with this irresistible chicken spaghetti casserole recipe that brings together tender pasta, succulent chicken, and a luxuriously creamy sauce. If you're looking for the perfect family dinner option, this hearty dish delivers satisfaction in every bite.

Chicken Spaghetti Casserole

Like our delightfully creamy mushroom pasta recipe, this casserole combines simple ingredients to create something truly spectacular. The melted cheese, perfectly cooked spaghetti, and seasoned chicken create a harmonious blend of flavors that will have everyone asking for seconds.

Whether you're hosting a dinner party or preparing a weeknight family meal, this casserole promises to become your new go-to recipe. Similar to our white cheese chicken lasagna, it's a crowd-pleasing dish that never disappoints.

Mastering the Art of Chicken Spaghetti Casserole

This chicken spaghetti casserole isn't just another pasta dish – it's a masterpiece of texture and flavor that rivals even our famous easy baked ziti. The combination of two types of cheese creates an incredibly rich and satisfying sauce, while the vegetables add both nutrition and complexity to every forkful.

Here's everything you need to know to create this comforting casserole that's sure to become a family favorite like our chicken pot pie casserole.

Serving Suggestions:

  • Pair with a crisp green salad and garlic bread
  • Add steamed broccoli on the side
  • Serve with crusty French bread for soaking up the creamy sauce
  • Complement with roasted vegetables
  • Finish the meal with a light dessert

Pro Tips for the Perfect Casserole:

  1. Pasta Perfection: Cook the spaghetti just shy of al dente as it will continue cooking in the oven
  2. Cheese Choice: Freshly grated cheese melts better than pre-shredded varieties
  3. Even Distribution: Layer ingredients carefully for consistent flavor in every bite
  4. Temperature Matters: Let ingredients come to room temperature before combining
  5. Rest Time: Allow the casserole to rest for the full 5 minutes before serving
Chicken Spaghetti Casserole

Chicken Spaghetti Casserole Recipe:

  • Preparation time: 15 minutes
  • Cooking time: 40 minutes
  • Servings: 8
  • Equipment: 9x13-inch baking dish, large pot, mixing bowls

With this recipe, your kitchen will become the favorite gathering spot for family and friends.

Ingredients:

  • 1 lb thin spaghetti, broken into 2-inch pieces
  • 2 cups cooked shredded chicken
  • 2 (10.5 ounce) cans cream of mushroom soup
  • 2 cups chicken broth
  • 1 medium onion, diced
  • 1 green bell pepper, diced
  • 1 (4 ounce) jar diced pimentos, drained
  • 2 cups shredded sharp cheddar cheese, divided
  • 1 cup Velveeta, cubed
  • 1 teaspoon seasoned salt
  • 1⁄4 teaspoon cayenne pepper
  • Salt and black pepper to taste

Directions:

  1. Prepare Your Workspace: Preheat the oven to 350°F and grease a 9×13-inch baking dish thoroughly.
  2. Cook the Pasta: Bring a large pot of salted water to a boil. Add the broken spaghetti pieces and cook until 2 minutes before reaching al dente, according to package instructions. Drain well and set aside.
  3. Create the Mixture: In a large mixing bowl, combine the cooked spaghetti, shredded chicken, cream of mushroom soup, chicken broth, diced onion, bell pepper, and pimentos.
  4. Add the Cheese: Mix in 1 ½ cups of the shredded cheddar cheese and all of the cubed Velveeta until well combined.
  5. Season to Perfection: Incorporate the seasoned salt, cayenne pepper, and add salt and black pepper to taste, stirring until everything is evenly distributed.
  6. Assemble and Bake: Transfer the mixture to your prepared baking dish, spreading it evenly. Top with the remaining ½ cup of cheddar cheese. Bake uncovered for 35-40 minutes until bubbly and lightly browned on top.
  7. Rest and Serve: Allow the casserole to stand for 5 minutes before serving to ensure perfect texture.

Ready to Enjoy!

This chicken spaghetti casserole offers a perfect balance of creamy, cheesy goodness and satisfying texture in every bite.

Storage Solutions:

  • Refrigerator: Store leftovers in an airtight container for up to 3 days
  • Freezer: Wrap portions tightly and freeze for up to 2 months
  • Reheating: Warm in a 350°F oven until heated through, adding a splash of milk if needed to restore creaminess
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Chicken Spaghetti Casserole

Chicken Spaghetti Casserole

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With this recipe, your kitchen will become the favorite gathering spot for family and friends.

  • Total Time: 55 minutes
  • Yield: 8 1x

Ingredients

Scale
  • 1 lb thin spaghetti, broken into 2-inch pieces
  • 2 cups cooked shredded chicken
  • 2 (10.5 ounce) cans cream of mushroom soup
  • 2 cups chicken broth
  • 1 medium onion, diced
  • 1 green bell pepper, diced
  • 1 (4 ounce) jar diced pimentos, drained
  • 2 cups shredded sharp cheddar cheese, divided
  • 1 cup Velveeta, cubed
  • 1 tsp seasoned salt
  • 1⁄4 tsp cayenne pepper

 

  • Salt and black pepper to taste

Instructions

  • Prepare Your Workspace: Preheat the oven to 350°F and grease a 9×13-inch baking dish thoroughly.
  • Cook the Pasta: Bring a large pot of salted water to a boil. Add the broken spaghetti pieces and cook until 2 minutes before reaching al dente, according to package instructions. Drain well and set aside.
  • Create the Mixture: In a large mixing bowl, combine the cooked spaghetti, shredded chicken, cream of mushroom soup, chicken broth, diced onion, bell pepper, and pimentos.
  • Add the Cheese: Mix in 1 ½ cups of the shredded cheddar cheese and all of the cubed Velveeta until well combined.
  • Season to Perfection: Incorporate the seasoned salt, cayenne pepper, and add salt and black pepper to taste, stirring until everything is evenly distributed.
  • Assemble and Bake: Transfer the mixture to your prepared baking dish, spreading it evenly. Top with the remaining ½ cup of cheddar cheese. Bake uncovered for 35-40 minutes until bubbly and lightly browned on top.

 

  • Rest and Serve: Allow the casserole to stand for 5 minutes before serving to ensure perfect texture.
  • Author: Margie
  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
Chicken Spaghetti CasseroleChicken Spaghetti CasseroleChicken Spaghetti Casserole
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