Slow Cooker Chicken Alfredo

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This comforting dish features tender chicken breasts cooked slowly until juicy, then combined with uncooked penne pasta and a rich creamy Alfredo sauce made from heavy cream, milk, cheeses, and butter. After slow cooking, the pasta becomes perfectly tender, absorbing the sauce’s flavors. Aromatics like garlic and seasoning with Italian herbs elevate the savory profile. Optional peas and fresh parsley add freshness and color. Ideal for an easy and satisfying meal with minimal hands-on time.

Updated on Thu, 25 Dec 2025 08:20:00 GMT
Slow Cooker Chicken Alfredo Pasta Bake: a creamy and comforting pasta dish, bubbling hot from the slow cooker. Pin it
Slow Cooker Chicken Alfredo Pasta Bake: a creamy and comforting pasta dish, bubbling hot from the slow cooker. | happyzitoune.com

There's something magical about coming home to the smell of cream and garlic simmering in the slow cooker, especially on those chaotic weeknights when I'd rather collapse than cook. I discovered this slow cooker chicken Alfredo almost by accident—I had leftover cream, some pasta hiding in the pantry, and exactly three hours before dinner needed to be on the table. What emerged was this silky, golden casserole that tasted like I'd been stirring a sauce all day, when really I'd done almost nothing.

I made this for my sister's book club night when she called asking if I could contribute something that wouldn't require her to heat up her apartment with the oven. She brought it to the potluck, and I watched people go back for thirds, their forks clinking against the sides of the baking dish. That's when I knew this recipe was a keeper—it's the kind of dish that makes people feel cared for without you having to look stressed or frazzled.

Ingredients

  • Chicken breasts or thighs: Thighs are more forgiving if you're worried about them drying out, but breasts work beautifully here because they're poaching gently in cream the whole time.
  • Penne or rigatoni pasta: Use uncooked pasta—it'll absorb all those creamy flavors as it cooks right in the sauce, which is the whole trick.
  • Heavy cream and whole milk: This combination gives you richness without being overwhelmingly heavy; it's the balance that makes you want another bite.
  • Mozzarella and Parmesan: Don't skip either one—the mozzarella melts into silky strands while the Parmesan adds that salty, umami punch.
  • Cream cheese and butter: These are your secret weapons for that restaurant-quality sauce that clings to every piece of pasta.
  • Garlic: Minced fresh garlic perfumes everything; there's no substitute for it here.
  • Nutmeg: Just a whisper of it deepens the sauce in ways people can't quite identify but absolutely notice.

Instructions

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Layer your chicken foundation:
Arrange the chicken pieces flat on the bottom of your slow cooker so they cook evenly. Sprinkle them generously with salt, pepper, Italian herbs, and that tiny bit of nutmeg—it might seem odd, but it transforms the whole sauce.
Build the creamy base:
Scatter your minced garlic over the chicken, then pour in the cream and milk. Drop the butter and cream cheese cubes directly on top; they'll melt into the liquid as everything heats.
Let the chicken cook low and slow:
Cover and cook on LOW for 3 hours until the chicken is so tender it practically falls apart when you touch it with a fork. The steam rising when you lift the lid will smell like a dream.
Shred and return:
Pull the chicken out carefully, shred it with two forks right on your cutting board, and return it to that beautiful sauce waiting in the slow cooker. This is when you'll notice how creamy everything already is.
Marry the pasta:
Stir in the uncooked pasta, both cheeses, and the peas if you're using them. The pasta needs to be completely submerged and well coated with sauce or it won't cook evenly.
Finish on high heat:
Cover and switch to HIGH for 30–40 minutes, giving it a stir halfway through so nothing sticks to the bottom. The pasta will go from firm to tender, and the sauce will thicken into something absolutely luxurious.
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Soft, absorbent towels keep counters dry while cooking, wiping spills, and handling dishes during everyday recipe prep.
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Golden, tender Slow Cooker Chicken Alfredo Pasta Bake with perfectly cooked pasta and melted mozzarella, ready to serve. Pin it
Golden, tender Slow Cooker Chicken Alfredo Pasta Bake with perfectly cooked pasta and melted mozzarella, ready to serve. | happyzitoune.com

I remember my nephew taking one bite and asking if I'd been to cooking school, which made me laugh so hard I nearly dropped the spoon. That's when I understood that sometimes the most impressive meals are the ones that look effortless, where all your care goes into the flavor instead of the performance.

Why This Works as Comfort Food

There's a reason this dish feels like a warm hug—it's all about cream, cheese, and tender chicken without any sharp edges. The slow cooker keeps everything moist and forgiving; nothing burns or tightens up the way it might in the oven. It's the kind of meal that fills you up without weighing you down, and it reheats beautifully, which means you'll have happy leftovers for lunch the next day.

When to Make This

This is your answer for Sunday meal prep, those rushed weeknights when you need dinner at six sharp, or when you're feeding a crowd and want to look relaxed instead of exhausted. It's also perfect for potlucks and bring-alongs because it travels well and tastes good at any temperature. Winter feels right for it, but honestly, creamy pasta Alfredo works any season when you're craving something that tastes like someone who loves you made it.

Variations and Flexibility

The beauty of this recipe is how easily it bends to what you have on hand or what you're craving. I've added sautéed mushrooms, sun-dried tomatoes, fresh spinach, and even crispy bacon bits without it ever failing. One time I used rotisserie chicken to cut the cooking time in half, and honestly, it was just as delicious. You can also sneak in vegetables without anyone noticing—peas, broccoli, or zucchini all work seamlessly.

  • Rotisserie chicken shortcut: Skip the initial 3-hour cook and add shredded rotisserie chicken directly at the pasta stage.
  • Vegetable add-ins belong at the pasta stage so they don't overcook during the long initial simmer.
  • Gluten-free pasta works fine here; just check the package for any timing adjustments since brands vary.
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Imagine a vibrant, cheesy Slow Cooker Chicken Alfredo Pasta Bake, perfect for a cozy, family-style dinner tonight. Pin it
Imagine a vibrant, cheesy Slow Cooker Chicken Alfredo Pasta Bake, perfect for a cozy, family-style dinner tonight. | happyzitoune.com

This recipe has quietly become the one I reach for when I want to feel like I'm taking care of people without losing my mind in the kitchen. It's one of those dishes that proves the best meals aren't always about complexity—sometimes it's just about cream, time, and a little bit of love.

Recipe FAQs

Can I use rotisserie chicken instead of raw chicken?

Yes, adding rotisserie chicken reduces cooking time. Add it at the pasta stage and shorten initial cooking.

Which pasta types work best for this dish?

Penne or rigatoni pasta absorbs the sauce well and maintains texture during baking.

Can I make this dish gluten-free?

Substitute with gluten-free pasta and adjust cooking time as needed to ensure tenderness.

How can I enhance the flavor further?

Adding sautéed mushrooms or sun-dried tomatoes adds depth and richness to the dish.

Is it necessary to shred the chicken before mixing?

Shredding ensures even distribution and better texture blending with pasta and sauce.

What garnishes complement this dish?

Fresh parsley adds color and brightness, balancing the richness of the creamy sauce.

Slow Cooker Chicken Alfredo

Comforting dish with tender chicken, pasta, and creamy Alfredo sauce, cooked slowly for rich flavor.

Prep time
10 min
Cook time
210 min
Overall time
220 min
Created by Liam Fletcher


Skill level Easy

Cuisine American

Makes 6 Portions

Dietary 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 in slow cooker: Place chicken breasts at the base of the slow cooker. Season with salt, black pepper, Italian herbs, and nutmeg. Add minced garlic on top.

Step 02

Add dairy and begin cooking: Pour heavy cream and whole milk over the chicken. Distribute butter pieces and cream cheese cubes evenly across the chicken surface. Cover and cook on LOW for 3 hours until chicken is fully cooked and easy to shred.

Step 03

Shred chicken: Remove chicken from the slow cooker and shred using two forks. Return shredded chicken to the cooker.

Step 04

Combine pasta and cheeses: Stir uncooked penne or rigatoni pasta, shredded mozzarella, grated Parmesan, and frozen peas (if using) into the slow cooker. Mix well for even distribution.

Step 05

Cook pasta on high: Cover and cook on HIGH for 30 to 40 minutes, stirring once halfway through, until the pasta is tender and sauce has thickened to a creamy consistency.

Step 06

Serve with garnish: Serve the casserole hot, garnished with chopped fresh parsley if desired.

Equipment needed

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

Allergy notes

Double-check each ingredient for allergens, and speak with a healthcare professional if unsure.
  • Contains dairy (milk, cheese) and wheat (gluten unless gluten-free pasta is used)

Nutrition info (each serving)

Details here are for general knowledge and aren’t medical advice.
  • Calorie count: 590
  • Fat content: 29 g
  • Carbohydrates: 47 g
  • Proteins: 37 g