Slow Cooker Chicken Alfredo

Featured in: Smart Weeknight Meals

This comforting dish combines tender chicken and pasta simmered slowly in a creamy Alfredo sauce. Garlic and Italian herbs build depth of flavor, while mozzarella and Parmesan melt to create a luscious texture. Cooking low and slow ensures juicy, easily shredded chicken, while the final high heat softens pasta and melds the sauce beautifully. A touch of parsley brings freshness to this hearty, hands-off meal ideal for cozy dinners.

Updated on Wed, 24 Dec 2025 10:35:00 GMT
Slow cooker Chicken Alfredo Pasta Bake with creamy sauce, bubbling mozzarella, and tender shredded chicken. Pin it
Slow cooker Chicken Alfredo Pasta Bake with creamy sauce, bubbling mozzarella, and tender shredded chicken. | smartyskitchen.com

My youngest daughter named this "Sunday pasta" after the first time I made it on a rainy weekend when we had zero energy but needed something warm and filling. The house smelled like an Italian restaurant by noon, and the kids kept wandering into the kitchen asking if it was done yet. Now it is our go-to when life feels heavy and we need a hug in a bowl.

I once forgot to shred the chicken before adding the pasta and ended up with giant chunks that overwhelmed every bite. My husband just laughed and said it was rustic, but I learned my lesson and now always shred it first. That small step makes such a difference in how the flavors weave through the whole dish.

Ingredients

  • Boneless skinless chicken breasts or thighs: Thighs stay juicier during long cooking but breasts work perfectly fine if that is what you have on hand
  • Uncooked penne or rigatoni pasta: These shapes catch the sauce in all their ridges and hollows, though any short pasta will work in a pinch
  • Heavy cream and whole milk: The combination creates that luscious restaurant style texture without becoming overly heavy
  • Shredded mozzarella and grated Parmesan cheese: Mozzarella melts into gooey perfection while Parmesan adds that salty umami depth
  • Unsalted butter: Adds an extra layer of richness and helps gloss the sauce to spoon coating consistency
  • Cream cheese: The secret ingredient that makes the sauce cling to every piece of pasta instead of pooling at the bottom
  • Garlic cloves: Fresh minced garlic mellows beautifully during slow cooking, infusing the cream with subtle warmth
  • Frozen peas: They add tiny pops of sweetness and color that cut through all the creaminess
  • Salt and black pepper: Simple seasonings that let the dairy and chicken shine without competing flavors
  • Dried Italian herbs: A blend of oregano, basil, and thyme brings herbaceous notes without any chopping
  • Ground nutmeg: Just a pinch enhances the creaminess in ways you cannot quite put your finger on but will definitely notice
  • Fresh parsley: Bright herbal finish that makes the dish look like you tried harder than you actually did

Instructions

Layer the foundation:
Arrange the chicken in an even layer at the bottom of your slow cooker so it cooks evenly and absorbs all those creamy flavors from beneath
Season generously:
Sprinkle the salt, pepper, Italian herbs, and nutmeg over the chicken, then scatter the minced garlic on top like confetti
Create the creamy base:
Pour in the heavy cream and milk, then distribute the butter pieces and cream cheese cubes across the surface like little flavor bombs waiting to melt
Let the slow cooker work:
Cover and cook on LOW for 3 hours until the chicken is cooked through and shreds easily with two forks
Shred and return:
Remove the chicken, shred it with two forks, and put it back in the slow cooker so every strand gets coated in that developing sauce
Add the pasta and finish:
Stir in the uncooked pasta, mozzarella, Parmesan, and peas, then cover and cook on HIGH for 30 to 40 minutes, stirring once halfway through, until the pasta is tender and the sauce has thickened into velvety perfection
Finish and serve:
Serve hot in shallow bowls with a sprinkle of fresh parsley on top for that pop of color and freshness
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This recipe saved me during a terrible week when my best friend was going through a divorce. I dropped off a container on her porch and she texted me later saying it was the first thing she had actually eaten in days. Sometimes comfort food is more than just carbohydrates and cream.

Make It Your Own

The beauty of this recipe is how well it adapts to whatever you have in the refrigerator or whatever your family prefers. I have made countless variations based on what was on sale or what needed using up.

Perfect Pairings

A crisp green salad with vinaigrette cuts through the richness and adds some freshness to the plate. Garlic bread feels excessive until you realize you can use it to scoop up every last drop of sauce.

Timing Tricks

You can prep everything the night before and store the ingredients in the refrigerator in separate containers. In the morning, just layer and go, letting the slow cooker transform it into magic while you work.

  • Set out the cream cheese and butter about 20 minutes before starting so they soften slightly
  • If you are short on time, use rotisserie chicken and skip the initial 3 hour cook
  • The pasta continues absorbing liquid as it sits, so sauce always looks a little thicker the next day
A comforting bowl of Slow Cooker Chicken Alfredo Pasta Bake, garnished with fresh parsley and ready to serve. Pin it
A comforting bowl of Slow Cooker Chicken Alfredo Pasta Bake, garnished with fresh parsley and ready to serve. | smartyskitchen.com

Sometimes the simplest meals become the ones we remember most, not because they were fancy but because they showed up exactly when we needed them.

Recipe Questions & Answers

Can I use chicken thighs instead of breasts?

Yes, boneless, skinless chicken thighs work well and remain tender through slow cooking.

What pasta types work best for this dish?

Penne or rigatoni hold the creamy sauce nicely and cook evenly during the slow cooker process.

How can I thicken the sauce if it’s too runny?

Allow the final cooking stage on high to reduce excess liquid, stirring occasionally for even thickening.

Are frozen peas necessary?

Peas add a subtle sweetness and color, but they can be omitted or replaced with other vegetables if preferred.

Can I prepare this dish ahead of time?

Yes, assemble ingredients in advance and refrigerate. Begin slow cooking when ready to serve for best texture.

Slow Cooker Chicken Alfredo

Tender chicken and pasta bathed in a creamy Alfredo sauce, cooked to perfection with minimal effort.

Prep Time
10 min
Time to Cook
210 min
Overall Time
220 min
Created by Emily Scott


Skill Level Easy

Culinary Roots American

Makes 6 Portions

Diet Details None specified

What You'll Need

Meats

01 1.5 lbs boneless, skinless chicken breasts or thighs

Pasta

01 12 oz uncooked penne or rigatoni pasta

Dairy

01 2 cups heavy cream
02 1 cup whole milk
03 1.5 cups shredded mozzarella cheese
04 1 cup grated Parmesan cheese
05 2 tbsp unsalted butter, cut into pieces
06 4 oz cream cheese, cubed

Vegetables & Aromatics

01 4 cloves garlic, minced
02 1 cup frozen peas (optional)

Seasonings

01 1 tsp salt
02 1/2 tsp black pepper
03 1/2 tsp dried Italian herbs
04 1/4 tsp ground nutmeg (optional)

Garnish

01 2 tbsp fresh parsley, chopped (optional)

Directions

Step 01

Prepare chicken base: Place chicken breasts at the bottom of the slow cooker. Season with salt, pepper, Italian herbs, nutmeg, and sprinkle minced garlic over.

Step 02

Add dairy liquids and butter: Pour heavy cream and whole milk over the chicken. Evenly distribute butter pieces and cream cheese cubes atop the chicken.

Step 03

Slow cook chicken: Cover and cook on LOW for 3 hours until chicken is fully cooked and tender enough to shred.

Step 04

Shred chicken: Remove chicken from slow cooker, shred finely using two forks, and return shredded meat to the cooker.

Step 05

Incorporate pasta and cheeses: Add uncooked pasta, shredded mozzarella, grated Parmesan, and frozen peas if using. Stir thoroughly to combine.

Step 06

Final cooking stage: Cover and cook on HIGH for 30 to 40 minutes, stirring once halfway through, until pasta is tender and sauce is creamy.

Step 07

Serve with garnish: Dish out the casserole hot and sprinkle with chopped fresh parsley as garnish.

Tools You'll Need

  • 6-quart or larger slow cooker
  • Knife and chopping board
  • Measuring cups and spoons
  • Forks for shredding

Allergy Info

Review each item for allergens and reach out to a healthcare provider if unsure.
  • Contains milk, cheese (dairy), and wheat (gluten if not using gluten-free pasta).

Nutrition Info (per portion)

Info for reference only. Always check with your doctor for health guidance.
  • Energy (Calories): 590
  • Fats: 29 g
  • Carbohydrates: 47 g
  • Proteins: 37 g