Crockpot Chicken Spaghetti Never Fails

Crockpot Chicken Spaghetti is the kind of dinner I make when I want something creamy, cheesy, and filling without a lot of work.

The chicken cooks until tender, then gets shredded and mixed with spaghetti, cheese, and a creamy sauce.

It’s simple comfort food that really does feel hard to mess up.

Recipe At A Glance

• Servings: 6
• Prep time: 15 minutes
• Crockpot time: About 4–5 hours on LOW
• Pasta and finishing time: About 15 minutes
• Total time: About 4 hours 30 minutes to 5 hours 30 minutes
• Difficulty: Easy
• Method: Slow cooker and stovetop

What You’ll Need

• 2 pounds boneless, skinless chicken breasts
• 1 can (10.5 ounces) cream of chicken soup
• 1 can (10 ounces) diced tomatoes with green chilies, undrained
• 1 cup low-sodium chicken broth
• 1 teaspoon Italian seasoning
• 1/2 teaspoon garlic powder
• 1/2 teaspoon ground pepper
• 4 ounces cream cheese, softened and cut into cubes
• 12 ounces dry spaghetti
• Water, for boiling the spaghetti
• 1 teaspoon salt, for the pasta water
• 2 cups sharp cheddar cheese, freshly shredded
• 2 tablespoons fresh parsley, finely chopped

Recipe And Instructions

Step 1: Add The Chicken

Place 2 pounds boneless, skinless chicken breasts in the bottom of a black oval crockpot. Arrange the breasts in one even layer so they cook as evenly as possible.

Step 2: Add The Sauce Ingredients

Pour 1 can (10.5 ounces) cream of chicken soup, 1 can (10 ounces) undrained diced tomatoes with green chilies, and 1 cup low-sodium chicken broth over the raw chicken.

Sprinkle in 1 teaspoon Italian seasoning, 1/2 teaspoon garlic powder, and 1/2 teaspoon ground pepper. Add 4 ounces softened cream cheese cut into cubes over the top.

Cover and cook on LOW for 4–5 hours. Start checking the chicken at 4 hours. The thickest part should reach 165°F (74°C).

Step 3: Shred The Chicken And Finish The Sauce

Once the chicken reaches 165°F (74°C), use two forks to shred all 2 pounds of cooked chicken breasts directly in the crockpot.

Stir the shredded chicken into the cooked sauce. The cream cheese, cream of chicken soup, tomatoes, chicken broth, Italian seasoning, garlic powder, and ground pepper should come together into a smooth, creamy sauce.

Keep the crockpot covered on WARM while you make the spaghetti.

Step 4: Cook The Spaghetti

Fill a large stainless steel pot with water and bring it to a boil. Add 1 teaspoon salt, then add 12 ounces dry spaghetti.

Cook according to the package directions until just al dente, usually about 8–10 minutes. Do not make it too soft because the spaghetti will soften a little more in the hot sauce.

Drain the spaghetti well. Do not rinse it.

Step 5: Add The Spaghetti And Cheese

Add all 12 ounces cooked and drained spaghetti to the crockpot with the shredded chicken and creamy sauce.

Add 2 cups freshly shredded sharp cheddar cheese. Use tongs to gently toss everything together until the cheddar melts and the sauce coats the spaghetti.

If the sauce seems too thick, add a small splash of hot water and stir again.

Step 6: Serve

Let the finished chicken spaghetti sit for about 5 minutes so the sauce can cling to the pasta.

Transfer it to a large round white serving bowl. Sprinkle 2 tablespoons finely chopped fresh parsley over the top and serve warm.

Why I Love This Recipe

There are evenings when I want a big bowl of comfort food but don’t want a sink full of dishes afterward. This chicken spaghetti is made for those days.

I like starting it in the afternoon and letting the crockpot handle the chicken. By dinner time, the chicken is tender and the sauce is hot and creamy. I only have to boil the spaghetti, shred some cheese, and bring everything together.

The first time you stir the spaghetti into that creamy chicken sauce, it may look like there is too much sauce. Give it a few minutes. The pasta starts grabbing onto the sauce, and the whole thing becomes thick, cheesy, and cozy.

• The chicken cooks right in the sauce.
• Cream cheese makes the sauce rich and smooth.
• Cheddar adds plenty of cheesy flavor.
• Tomatoes with green chilies give the rich sauce a little brightness.
• You only need to cook the spaghetti separately.
• Leftovers reheat well for an easy lunch.

Why This Recipe Works (Quick Science)

The crockpot uses low, steady heat. That gives the chicken time to cook gently in liquid. Checking for 165°F helps you stop cooking before the breast meat becomes too dry.

Cream cheese and cheddar bring fat and milk proteins to the sauce. As they warm, they make the sauce creamy and help it cling to the spaghetti.

Cooking the spaghetti separately is also important. Dry pasta needs plenty of water to cook evenly. If it spends hours in the crockpot, it can soak up too much liquid and turn mushy.

Freshly shredded cheddar melts better than many bags of pre-shredded cheese because packaged shredded cheese often has an anti-caking coating.

Pro Tips

• Check at 4 hours. Slow cookers vary, and chicken breast can dry out if it cooks too long.
• Soften the cream cheese first. It melts into the sauce much more easily.
• Shred your own cheddar. It usually gives you a smoother, creamier sauce.
• Keep the spaghetti al dente. It will soften a little when mixed with the hot sauce.
• Don’t rinse the pasta. The starch left on the spaghetti helps the creamy sauce stick.

Tools You’ll Need

• Black oval crockpot
• Large stainless steel pasta pot
• Colander
• Two forks
• Tongs
• Silicone spatula
• Instant-read meat thermometer
• Can opener
• Measuring spoons
• Kitchen scale or measuring tools
• Cheese grater
• Large round serving bowl

Substitutions And Variations

• Chicken thighs: Boneless, skinless thighs work well and stay very juicy.
• Milder tomatoes: Replace tomatoes with green chilies with plain petite diced tomatoes for less heat.
• Different pasta: Linguine or fettuccine can replace spaghetti.
• Cheese: Monterey Jack is a good choice if you want a milder cheese.
• Extra vegetables: Stir in cooked mushrooms, spinach, or broccoli near the end.
• More heat: Add a small pinch of red pepper flakes.
• Cream of mushroom: Replace the cream of chicken soup with cream of mushroom soup for a deeper flavor.

Make-Ahead Tips

You can shred the cheddar and measure the dry seasonings the night before. Keep everything covered in the refrigerator or pantry as needed.

The chicken and sauce can also be cooked ahead. Cool them refrigerate them in an airtight container. Reheat the sauce and chicken until hot, then cook fresh spaghetti and add the cheese.

For the best pasta texture, I would not cook the spaghetti a day ahead unless you need to.

Common Mistakes

• Overcooking the chicken: Start checking the internal temperature around the 4-hour mark.
• Using frozen chicken: Thaw chicken safely in the refrigerator before putting it in the slow cooker.
• Overcooking the spaghetti: Soft spaghetti can become mushy when mixed with the hot sauce.
• Using cold cream cheese: Softened cream cheese blends more easily.
• Adding cheddar too early: Stir it in near the end so it stays creamy.
• Using too much salt: Soup and cheese already contain salt, so taste before adding more.
• Putting the crockpot on the stove: Always keep the crockpot on a safe, flat work surface such as the marble surface described here.

What To Serve With Crockpot Chicken Spaghetti

Because this pasta is rich and creamy, simple vegetable sides are a great match.

• Roasted broccoli
• Garlic green beans
• Simple garden salad
• Roasted asparagus
• Steamed peas
• Garlic bread
• Roasted zucchini
• Tomato and cucumber salad

Macros Information

Approximate nutrition per serving when divided into 6 servings:

• Calories: 690
• Protein: 55 g
• Carbohydrates: 52 g
• Fat: 29 g
• Fiber: 3 g

Nutrition will vary with the exact brands and ingredients you use.

Leftovers And Storage

• Store leftovers in an airtight container in the refrigerator for 3–4 days.
• Reheat gently in the microwave or on the stove until the chicken reaches 165°F (74°C).
• Add a splash of chicken broth or water when reheating if the sauce has become thick.
• The pasta will continue to soak up sauce while it sits, so leftovers may be thicker the next day.
• You can freeze it, but creamy sauces and cooked pasta may have a softer texture after thawing. For best results, freeze the chicken and sauce separately from the spaghetti.

FAQ

Q: Can I put uncooked spaghetti directly in the crockpot?
A: I don’t recommend it for this recipe. Cooking the spaghetti separately gives you much better control over its texture.

Q: Can I use frozen chicken breasts?
A: Thaw them safely in the refrigerator first. Starting with thawed chicken helps it cook more evenly and safely in the slow cooker.

Q: Is this chicken spaghetti spicy?
A: It has a little flavor from the tomatoes with green chilies, but it should not be very hot. Use plain diced tomatoes if you want it milder.

Q: Why did my sauce get too thick?
A: Spaghetti absorbs liquid as it sits. Stir in a little warm chicken broth or hot water until the sauce reaches the texture you like.

Q: Why is my cheese sauce grainy?
A: Very high heat or some pre-shredded cheeses can make the sauce less smooth. Freshly shred the cheddar and stir it into the hot mixture near the end.

Q: How do I know when the chicken is ready to shred?
A: Check the thickest part with an instant-read thermometer. It should reach 165°F (74°C) and should pull apart easily.

Final Thoughts

Crockpot Chicken Spaghetti is all about easy comfort food. You get tender shredded chicken, creamy sauce, melted cheddar, and plenty of pasta without spending all evening cooking.

Watch the chicken temperature, keep your spaghetti a little firm, and add the cheddar near the end. Those simple steps give you a creamy chicken spaghetti dinner that really is hard to mess up.