Crockpot Cheesy Chicken Spaghetti Recipe

Crockpot Cheesy Chicken Spaghetti is a creamy, cheesy slow cooker dinner made with tender chicken breasts, spaghetti, spicy nacho cheese soup, diced tomatoes with green chilies, heavy whipping cream, and fiesta blend cheese. It brings classic chicken spaghetti comfort food together with the convenience of a Crockpot.

The chicken cooks slowly in a rich sauce until it is fully cooked and tender. After that, you shred the chicken and return it to the Crockpot before adding the uncooked spaghetti. The pasta then cooks directly in the creamy sauce, followed by plenty of melted fiesta blend cheese for a satisfying finish.

The combination of spicy nacho cheese soup and tomatoes with green chilies gives this chicken spaghetti a savory, cheesy flavor with a little heat. Heavy whipping cream makes the sauce rich, while garlic powder, onion powder, and paprika add seasoning without making the ingredient list complicated.

This crockpot chicken spaghetti is especially handy when you want a hearty family dinner without preparing several separate components. The chicken and sauce take care of the first cooking stage, while the spaghetti and cheese finish the meal in the same slow cooker.

Why You’ll Love This Recipe

Easy Crockpot method: The chicken and sauce cook in the slow cooker before the spaghetti and cheese finish the meal.
Rich and creamy: Spicy nacho cheese soup and heavy whipping cream create the base for the creamy sauce.
Plenty of cheese: Two cups of shredded fiesta blend cheese are divided between the creamy pasta and the melted topping.
Tender shredded chicken: The chicken cooks until tender before being shredded and mixed back into the sauce.
Pasta cooks in the Crockpot: The uncooked spaghetti is added during the final cooking stage, so there is no separate pasta pot in the original method.
Flavorful without a long ingredient list: Garlic powder, onion powder, paprika, and black pepper complement the cheesy sauce.
A little heat: Spicy nacho cheese soup and diced tomatoes with green chilies bring a flavorful kick to the dish.
Simple finishing touch: Fresh chopped parsley adds color before the spaghetti is served warm.

Ingredients

2 large boneless, skinless chicken breasts
12 oz uncooked spaghetti, broken in half
1 can (10.5 oz) spicy nacho cheese soup
1 can (10 oz) diced tomatoes with green chilies, undrained
1 cup heavy whipping cream
2 cups shredded fiesta blend cheese, divided
1 teaspoon garlic powder
1 teaspoon onion powder
1/2 teaspoon paprika
Salt and black pepper to taste
Fresh chopped parsley for garnish

Ingredient Notes

Boneless, Skinless Chicken Breasts

The recipe starts with 2 large boneless, skinless chicken breasts. Season them directly in the Crockpot with garlic powder, onion powder, paprika, salt, and black pepper. Once fully cooked and tender, the chicken is removed and shredded with two forks.

Spaghetti

Use 12 oz of uncooked spaghetti and break the strands in half before adding them to the Crockpot. The spaghetti goes in after the chicken has been shredded and returned to the sauce. Press it gently into the sauce so it is mostly covered.

Spicy Nacho Cheese Soup

The 10.5 oz can of spicy nacho cheese soup provides a concentrated cheesy component for the sauce. It goes into the Crockpot with the diced tomatoes with green chilies and heavy whipping cream.

Diced Tomatoes with Green Chilies

Use one 10 oz can of diced tomatoes with green chilies, and keep it undrained as directed. The tomatoes and green chilies add flavor and texture to the creamy sauce.

Heavy Whipping Cream

One cup of heavy whipping cream helps create the rich, creamy sauce that coats the chicken and spaghetti.

Fiesta Blend Cheese

The recipe uses 2 cups of shredded fiesta blend cheese. Use 1 1/2 cups in the spaghetti and reserve the remaining 1/2 cup for the cheesy topping.

Seasonings

Garlic powder, onion powder, paprika, salt, and black pepper season the chicken. Salt and black pepper are added to taste, so no fixed amount is assigned to those two ingredients.

Fresh Parsley

Fresh chopped parsley is used as the finishing garnish. Add it after the cheese has melted and the spaghetti is ready to serve.

Equipment

Crockpot or slow cooker
Two forks for shredding the cooked chicken

How to Make Crockpot Cheesy Chicken Spaghetti

Step 1: Season the Chicken

Lightly spray the inside of the Crockpot with cooking spray. Place the 2 large boneless, skinless chicken breasts in the bottom. Season the chicken with garlic powder, onion powder, paprika, salt, and black pepper.

Step 2: Add the Creamy Sauce Ingredients

Pour the spicy nacho cheese soup, diced tomatoes with green chilies, and heavy whipping cream over the chicken. Keep the tomatoes and green chilies undrained, as directed in the recipe.

Step 3: Cook the Chicken on LOW

Cover the Crockpot and cook on LOW for 4–5 hours, or until the chicken is fully cooked and tender. This first cooking stage allows the chicken to cook in the creamy, cheesy sauce.

Step 4: Shred the Chicken

Remove the cooked chicken from the Crockpot. Shred it with two forks, then return the shredded chicken to the slow cooker.

Step 5: Stir the Chicken into the Sauce

Stir the shredded chicken well so it combines with the creamy sauce. This distributes the chicken throughout the mixture before the pasta is added.

Step 6: Add the Spaghetti

Add the uncooked spaghetti, with the strands broken in half. Gently press the spaghetti down into the sauce so it is mostly covered. If needed, add a small amount of warm water or chicken broth to ensure the pasta is submerged.

Step 7: Cook Until the Spaghetti Is Tender

Cover the Crockpot and cook on HIGH for 25–35 minutes. Stir once or twice during this stage, continuing until the spaghetti is tender.

Step 8: Stir in 1 1/2 Cups of Cheese

Stir in 1 1/2 cups of the shredded fiesta blend cheese. Continue stirring until the cheese melts into the spaghetti and creates a creamy mixture.

Step 9: Add the Remaining Cheese

Sprinkle the remaining 1/2 cup of shredded fiesta blend cheese evenly over the top of the spaghetti.

Step 10: Melt the Cheese Topping

Cover the Crockpot and let the remaining cheese melt for about 5 minutes.

Step 11: Garnish and Serve

Garnish the finished Crockpot Cheesy Chicken Spaghetti with fresh chopped parsley and serve warm.

Tips for the Best Results

Lightly spray the Crockpot first: The original recipe begins by lightly spraying the inside of the slow cooker with cooking spray.
Season the chicken evenly: Apply the garlic powder, onion powder, paprika, salt, and black pepper directly to the chicken before adding the sauce ingredients.
Keep the tomatoes undrained: The recipe specifically calls for the diced tomatoes with green chilies to be added with their liquid.
Wait to add the pasta: The spaghetti belongs in the Crockpot after the chicken has finished its initial LOW cooking stage.
Break the spaghetti in half: Shorter strands are specified in the original recipe and make it easier to press the pasta into the sauce.
Make sure the pasta is mostly covered: Gently press the spaghetti down into the sauce. If necessary, use a small amount of warm water or chicken broth to help submerge it.
Stir the spaghetti once or twice: The recipe specifically calls for stirring during the 25–35 minute HIGH cooking stage.
Divide the cheese correctly: Use 1 1/2 cups in the creamy spaghetti and reserve 1/2 cup for the top.
Give the topping time to melt: Cover the Crockpot and allow about 5 minutes for the remaining cheese to melt.
Serve warm: Finish with fresh chopped parsley immediately before serving.

Common Mistakes to Avoid

Adding the Spaghetti Too Soon

The chicken needs to cook first. Add the spaghetti only after the chicken has been cooked, shredded, and returned to the creamy sauce.

Draining the Tomatoes

The diced tomatoes with green chilies are specifically listed as undrained. Keep the liquid in the can when adding them to the Crockpot.

Skipping the Shredding Step

The cooked chicken should be removed from the Crockpot and shredded with two forks before being returned to the sauce.

Leaving Too Much Pasta Above the Sauce

When adding the spaghetti, gently press it down so it is mostly covered. If needed, add a small amount of warm water or chicken broth to help ensure the pasta is submerged.

Using All the Cheese Inside the Pasta

The 2 cups of fiesta blend cheese are divided. Use 1 1/2 cups in the spaghetti and reserve the remaining 1/2 cup for the top.

Skipping the Stir During Pasta Cooking

The recipe calls for stirring the spaghetti once or twice while it cooks on HIGH for 25–35 minutes. Keep that step in the process rather than leaving the pasta completely untouched.

Substitutions and Variations

These are optional adaptations and are not part of the original recipe.

Cheese adaptation: Another shredded cheese blend could be considered in place of fiesta blend cheese, although the original recipe specifically uses fiesta blend cheese.
Garnish adaptation: Fresh parsley is the listed garnish and can be omitted if you prefer not to use a garnish.
Liquid adjustment for pasta: The original recipe already allows a small amount of warm water or chicken broth if needed to ensure the spaghetti is submerged. This is part of the supplied method rather than a change to the ingredient list.

To keep the original recipe unchanged, use the listed chicken, spaghetti, spicy nacho cheese soup, tomatoes with green chilies, heavy whipping cream, fiesta blend cheese, seasonings, and parsley.

Serving Suggestions

These are serving suggestions only and are not included in the original recipe.

Crockpot Cheesy Chicken Spaghetti is a rich and hearty main dish, so it can be paired with a simple vegetable side or crisp green salad. Steamed vegetables can provide a lighter contrast to the creamy pasta, while a basic salad keeps the meal fresh and straightforward.

For a simple family dinner, serve the spaghetti warm with its melted cheese topping and fresh parsley garnish.

Storage and Reheating

Specific storage and reheating instructions were not included with the original recipe, so this article does not assign a storage duration or reheating method that was not supplied.

Frequently Asked Questions

Can I make chicken spaghetti in a Crockpot?

Yes. This recipe is specifically prepared in a Crockpot. The chicken cooks first on LOW, then the shredded chicken, spaghetti, and cheese are added during the remaining stages.

How long does the chicken cook in this recipe?

The chicken cooks on LOW for 4–5 hours, or until it is fully cooked and tender.

When should I add the spaghetti?

Add the uncooked spaghetti after the chicken has finished cooking, been shredded with two forks, and returned to the Crockpot with the creamy sauce.

Does the spaghetti need to be broken in half?

Yes. The recipe calls for 12 oz of uncooked spaghetti broken in half before it is added to the Crockpot.

What type of cheese does this chicken spaghetti use?

The recipe uses 2 cups of shredded fiesta blend cheese. The cheese is divided, with 1 1/2 cups stirred into the spaghetti and the remaining 1/2 cup melted over the top.

What makes this Crockpot chicken spaghetti creamy?

The sauce uses a can of spicy nacho cheese soup and 1 cup of heavy whipping cream. The fiesta blend cheese is then melted into the pasta, adding another creamy, cheesy element.

Should I drain the diced tomatoes with green chilies?

No. The recipe specifically says to use the 10 oz can of diced tomatoes with green chilies undrained.

What if the spaghetti is not mostly covered by the sauce?

Gently press the spaghetti down into the sauce. If needed, add a small amount of warm water or chicken broth to ensure the pasta is submerged.

What setting does the spaghetti cook on?

After the chicken has been shredded and returned to the sauce, the spaghetti cooks on HIGH for 25–35 minutes. Stir once or twice during this stage until the spaghetti is tender.

How much cheese goes into the Crockpot chicken spaghetti?

The recipe calls for 2 cups of shredded fiesta blend cheese. Use 1 1/2 cups in the spaghetti and the remaining 1/2 cup on top.

Is parsley required?

Fresh chopped parsley is used as a garnish. It is a finishing ingredient rather than part of the creamy sauce or pasta cooking stage.

How long does the final cheese topping take to melt?

After the remaining cheese is sprinkled over the top, cover the Crockpot and let it melt for about 5 minutes.

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