Some recipes earn their reputation the honest way: by converting skeptics at the dinner table. This Chicken Spaghetti is exactly that kind of dish. Tender shredded chicken and spaghetti noodles get coated in a creamy, cheesy sauce with a little kick from Rotel-style diced tomatoes, then baked until the top turns melted and golden. It’s comfort food through and through, but it holds up just as well for a weeknight dinner as it does for next-day leftovers.
Unlike a classic marinara-based spaghetti, this version swaps in a rich, savory cream sauce built from cream of mushroom soup, sharp cheddar, and flavorful chicken broth. The recipe comes together from pantry staples most people already have on hand, which is a big part of its appeal. This guide covers the complete recipe, the role of every ingredient, the details that keep the noodles from turning mushy, and plenty of ideas for variations, storage, and serving.
What Is Chicken Spaghetti?
Chicken Spaghetti is a baked pasta casserole that trades the usual tomato sauce for a creamy, cheesy base. Shredded chicken and broken spaghetti noodles are combined with cream of mushroom soup, sharp cheddar cheese, diced green pepper and onion, tangy pimentos, and a touch of cayenne for warmth, all brought together with reserved chicken broth. The mixture is baked until bubbly and golden, creating a dish that’s rich, cheesy, and deeply comforting.
It’s a Southern-style casserole classic, the kind of recipe that has been passed down and tweaked across family kitchens for generations, prized for its reliability and for how easily it comes together from things already in the pantry.
Why You’ll Love This Recipe
- Made from pantry staples. Nothing fancy required, just things you likely already have.
- Rich, creamy, and cheesy. A comforting departure from traditional marinara spaghetti.
- Great for using leftover or rotisserie chicken. Flexible depending on what you have on hand.
- Freezer friendly. Freezes exceptionally well, both before and after baking.
- Feeds a crowd. A generous casserole that stretches to feed a family with leftovers.
- Minimal heat, maximum flavor. The cayenne adds warmth without overwhelming spice.
- A proven crowd-pleaser. The kind of dish that converts even dedicated fans of a different recipe.
Ingredients You’ll Need
Cooked Chicken
You need 2 cups of cooked chicken, shredded. A whole fryer chicken, boiled and shredded, works great, and using the cooking water as broth later ties the whole dish together. Rotisserie chicken or any other cooked chicken you have on hand works just as well.
Dry Spaghetti
You need 3 cups of dry spaghetti, broken into 2-inch pieces. Breaking it into shorter pieces before cooking helps it mix evenly with the chicken and sauce, rather than tangling into long strands throughout the casserole.
Cream of Mushroom Soup
You need 2 cans of cream of mushroom soup. This forms the creamy base of the sauce and gives the dish great flavor and texture. Cream of chicken soup can be substituted if you prefer.
Sharp Cheddar Cheese
You need 2 cups of grated sharp cheddar cheese, divided. Sharp cheddar melts well and balances out the creaminess from the soup and broth with its bold, tangy flavor. Half goes into the mixture, and half tops the casserole before baking.
Green Pepper and Onion
You need ¼ cup each of finely diced green pepper and onion. These add savory depth and a little texture throughout the dish.
Diced Pimentos
You need 1 jar (4 ounces) of diced pimentos, drained. Pimentos add a pop of color and a mild, tangy flavor that complements the creamy sauce. They can be left out if you’re not a fan, though they contribute a nice visual and flavor touch.
Chicken Broth
You need 2 cups of chicken broth, reserved from cooking the chicken. This broth ties everything together, adding moisture and deep, savory flavor to the finished casserole.
Lawry’s Seasoned Salt
You need 1 teaspoon of Lawry’s Seasoned Salt, which adds a well-rounded, classic savory seasoning throughout the dish.
Cayenne Pepper
You need ⅛ to ¼ teaspoon of cayenne pepper, depending on your heat preference. It’s not too spicy. Start with ⅛ teaspoon if you’re unsure, and add more next time if you’d like extra heat.
Salt and Pepper
Season to taste, adjusting at the end since the soup, cheese, and seasoned salt all contribute their own saltiness.
Equipment
- A large pot, for boiling the chicken and cooking the spaghetti
- A large mixing bowl
- A casserole dish
- Aluminum foil, if needed to prevent over-browning
- A meat thermometer, for checking the chicken
How to Make Chicken Spaghetti, Step by Step
Step 1: Boil the Chicken
Start with a whole fryer chicken, cut into pieces. Place it in a large pot, cover with water, and boil until it’s fully cooked and tender. Once done, remove the chicken and set it aside to cool. Be sure to save the broth, since you’ll need it later in the recipe.
Step 2: Shred and Measure
Once the chicken is cool enough to handle, remove the skin and bones and shred the meat. Measure out about 2 cups of shredded chicken for the recipe.
Step 3: Cook the Spaghetti
In the same pot of broth, add the spaghetti, broken into 2-inch pieces, and cook until al dente. You don’t want it too soft, since it will finish cooking in the oven.
Step 4: Mix Everything Together
In a big mixing bowl, combine the cooked spaghetti, shredded chicken, cream of mushroom soup, half the cheddar cheese, green pepper, onion, pimentos, 2 cups of the reserved broth, seasoned salt, cayenne, and salt and pepper. Stir until well mixed.
Step 5: Assemble the Casserole
Pour the mixture into a casserole dish and spread it out evenly. Top with the remaining cheddar cheese.
Step 6: Bake
Preheat the oven to 350°F. Bake the casserole for 45 minutes, or until it’s hot and bubbly. If the cheese on top starts browning too much, cover it with foil partway through.
Recipe Card
Chicken Spaghetti That Everyone Loves
- Yield: about 8 servings
- Prep time: 30 minutes (includes boiling chicken)
- Cook time: 45 minutes
- Course: Dinner
Ingredients
- 2 cups cooked chicken, shredded
- 3 cups dry spaghetti, broken into 2-inch pieces
- 2 cans cream of mushroom soup
- 2 cups grated sharp cheddar cheese, divided
- ¼ cup green pepper, finely diced
- ¼ cup onion, finely diced
- 1 jar (4 oz) diced pimentos, drained
- 2 cups chicken broth (reserved from cooking chicken)
- 1 teaspoon Lawry’s Seasoned Salt
- ⅛ to ¼ teaspoon cayenne pepper
- Salt and pepper, to taste
Instructions
- Boil a whole fryer chicken in a large pot of water until fully cooked. Remove and cool, reserving the broth.
- Shred the chicken and measure out 2 cups.
- Cook the broken spaghetti in the reserved broth until al dente.
- In a large bowl, combine the spaghetti, chicken, cream of mushroom soup, half the cheddar, green pepper, onion, pimentos, 2 cups of broth, seasoned salt, cayenne, salt, and pepper.
- Pour into a casserole dish and top with the remaining cheddar.
- Bake at 350°F for 45 minutes, until hot and bubbly, covering with foil if the top browns too quickly.
Tips for the Best Chicken Spaghetti
Break the Spaghetti Before Cooking
Snapping it into shorter pieces helps it mix evenly with the chicken and sauce, rather than clumping into long strands.
Don’t Overcook the Noodles
Pull the spaghetti out when it’s just al dente, since it will continue cooking in the oven. Overcooked noodles going in will turn mushy by the time the casserole is done.
Save the Chicken Broth
Boiling the chicken in enough water to get a flavorful broth is worth the extra step, since that broth brings the whole dish together and adds real depth.
Shred the Chicken Finely
Smaller shreds blend better into the mixture and make the casserole easier to serve and eat.
Use a Big Bowl for Mixing
A large bowl helps everything combine evenly before it goes into the casserole dish, so you don’t end up with pockets of unmixed ingredients.
Watch the Top While Baking
If the cheese starts browning too much before the dish is fully heated through, cover it loosely with foil for the remainder of the baking time.
Troubleshooting Common Problems
My Noodles Turned Mushy
They were likely cooked too long before baking. Pull them while still al dente, since they’ll continue to soften in the oven.
My Casserole Is Dry
This can happen if too little broth was used, or if it baked a bit too long. Make sure to use the full 2 cups of reserved broth, and check for doneness starting a few minutes early next time.
My Casserole Tastes Bland
Taste the mixture before baking and adjust the seasoned salt, cayenne, salt, or pepper as needed.
My Top Browned Too Quickly
Cover the casserole loosely with foil partway through baking to prevent the cheese from over-browning before the dish is fully heated through.
My Sauce Is Too Thick
Stir in a little extra chicken broth before baking if the mixture seems too dense.
Variations to Try
Rotisserie Chicken Shortcut
Use rotisserie chicken instead of boiling your own for a faster version. You’ll just need to use regular chicken broth instead of the reserved cooking liquid.
Different Cheese
Swap in Monterey Jack or Parmesan in place of or alongside the cheddar for a different flavor.
Extra Heat
Add a little crushed red pepper or some diced jalapeños if you want more spice than the cayenne alone provides.
Extra Vegetables
Cook mushrooms or additional bell peppers along with the onion and toss them into the mixture for more texture and flavor.
Cream of Chicken Swap
If you’re not a fan of mushrooms, swap the cream of mushroom soup for cream of chicken instead.
Skip the Pimentos
If you’re not a fan, simply leave them out. They mainly add color and a bit of tang, so the dish still works well without them.
What to Serve With Chicken Spaghetti
- A simple side salad
- Garlic bread
- Steamed green beans
- A light vinaigrette-dressed salad, for contrast to the richness
This casserole is filling and cheesy enough to hold up well on its own, so sides are optional unless you’re feeding a larger group or want to stretch the meal further.
Make-Ahead, Storage, and Freezing
Make ahead: Assemble the casserole up to the point of baking, cover tightly, and refrigerate until you’re ready to bake.
Freezing: This dish freezes really well. If you know you won’t finish the whole casserole, split it into two dishes and freeze one for later. You can also make it ahead, stop before baking, and wrap it tightly for the freezer.
Thawing and reheating: Thaw in the refrigerator overnight. Let it sit out for about 30 minutes before baking so it isn’t going from cold to hot too quickly. Then bake as normal until it’s hot and bubbly.
Refrigerating leftovers: Store leftovers in an airtight container in the refrigerator for up to 3 to 4 days.
Frequently Asked Questions
What kind of chicken should I use?
A whole fryer chicken works great. Boil it, shred the meat, and set aside 2 cups for the recipe. Rotisserie chicken or any other cooked chicken you have on hand also works well.
Can I use a different soup?
Yes. This recipe uses cream of mushroom soup for its flavor and creamy texture, but you can swap in cream of chicken if you prefer.
Is it okay to skip the pimentos?
Yes. If you’re not a fan, leave them out. They add a nice pop of color and a bit of tang, but the dish works fine without them.
How spicy is the cayenne?
Not very. Start with ⅛ teaspoon if you’re unsure, and add more next time if you like extra heat.
What cheese is best?
Sharp cheddar gives the dish great flavor, melts well, and balances the creaminess of the soup and broth.
Can chicken spaghetti be frozen?
Yes, and it freezes really well, both before and after baking. See the storage section above for details.
Can I make this with rotisserie chicken instead of boiling my own?
Yes. It’s a great shortcut. Just use regular chicken broth in place of the reserved cooking liquid.
Allergen Note
This recipe contains milk (from the cheese and soup) and gluten (from the spaghetti and soup). Always check ingredient labels if you are serving guests with dietary restrictions.
