If you’re on the hunt for a comforting, hands-off dinner that’ll wow your family and friends, you absolutely have to try this Crock Pot Chicken Alfredo Casserole Recipe. It’s creamy, cheesy, and packed with tender chicken and pasta that comes together effortlessly in your slow cooker. I promise, once you try it, you’ll be adding it to your weekly rotation because it’s just that good and easy to pull off!

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Why You’ll Love This Recipe

Set It and Forget It: I love how easy this is—once you layer everything in the crock pot, you just let it work its magic without constant babysitting.
Rich, Creamy Flavor: The Alfredo sauce mixed with gooey mozzarella and parmesan makes every bite feel indulgent but still homey.
Versatile and Family Friendly: Whether it’s weeknight dinner or casual entertaining, my family goes crazy for this casserole every time.
Minimal Prep, Maximum Taste: With just a handful of pantry staples and cooked chicken, this recipe fits perfectly into busy schedules without sacrificing flavor.

A white plate holds one layer of light beige cooked penne pasta, topped with a thick layer of creamy white sauce mixed with shredded white meat and some small black specks, likely black pepper. The top layer consists of melted pale yellow cheese sprinkled with small green herb leaves. The plate sits on a white marbled surface next to a gold fork. Behind the plate, there is a stainless steel slow cooker with a digital display, a small white bowl with green herbs, and a small metal grater holding a block of pale yellow cheese. A folded blue and white striped cloth is on the left side. Photo taken with an iphone --ar 2:3 --v 7 - Crock Pot Chicken Alfredo Casserole, creamy chicken pasta bake, slow cooker Alfredo dinner, cheesy chicken casserole, easy Crock Pot chicken recipe

Ingredients You’ll Need

Every ingredient in this Crock Pot Chicken Alfredo Casserole Recipe brings something special to the table, working together to build cozy, creamy layers of flavor. When shopping, I recommend picking up a quality Alfredo sauce—you’ll taste the difference! Also, pre-cooked chicken can save tons of time if you’re in a hurry.

Flat lay of a few boneless skinless chicken breasts cooked and shredded, a small mound of uncooked penne pasta, a small white bowl filled with creamy Alfredo sauce, a small white bowl of water, a small white bowl with minced garlic, two whole brown eggs with clean shells, a small white bowl of salt, a small white bowl of cracked black pepper, a generous pile of shredded mozzarella cheese, a smaller pile of grated parmesan cheese, and a few fresh sprigs of chopped parsley, all arranged symmetrically in simple white ceramic bowls and plates, placed on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p awthu7i m7354615311229779997 - Crock Pot Chicken Alfredo Casserole, creamy chicken pasta bake, slow cooker Alfredo dinner, cheesy chicken casserole, easy Crock Pot chicken recipe

Boneless skinless chicken breasts: I prefer cooking and shredding these ahead of time for quick assembly.
Alfredo sauce: I swear by Bertolli for a creamy, rich base that elevates the dish effortlessly.
Water: Helps thin out the sauce just enough so the pasta cooks perfectly in the crock pot.
Minced garlic: Adds a punch of savory flavor that livens up the sauce.
Salt and pepper: Essential for seasoning—don’t skip, it’s the backbone of flavor here.
Penne pasta: Uncooked goes right in; it soaks up all those delicious saucy flavors as it cooks.
Mozzarella cheese: Shredded and layered for that irresistible melty cheesiness.
Parmesan cheese: Just a sprinkle brings in a sharp, nutty contrast.
Chopped parsley (optional): For a fresh, colorful finish that brightens the whole casserole.

Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Variations

I love how versatile this Crock Pot Chicken Alfredo Casserole Recipe is, so don’t hold back on making it your own! I’ve messed around with different cheeses and even tossed in veggies to switch things up. You’ll enjoy discovering which versions your family likes best!

Swap the Cheese: I’ve tried mixing provolone or gouda with mozzarella for a deeper flavor profile—delicious and decadent.
Add Veggies: Spinach, mushrooms, or sun-dried tomatoes stirred in add freshness and color I personally love.
Spicy Kick: For a bit of heat, sprinkle red pepper flakes into the sauce before cooking—it wakes up the dish nicely.
Low-carb Option: Substitute penne with zoodles or cauliflower rice if you’re watching carbs, though cooking time might vary.

How to Make Crock Pot Chicken Alfredo Casserole Recipe

Step 1: Mix the Sauce and Pasta

Start by combining your Alfredo sauce, water, minced garlic, salt, and pepper in a mixing bowl. Stir until everything is melded nicely. Then toss in your uncooked penne pasta, making sure it’s evenly coated with that creamy sauce mixture. This ensures the noodles soak up all that wonderful flavor during cook time.

Step 2: Layer the Ingredients in the Crock Pot

Spray a 6-quart crock pot with non-stick spray before layering. Start with half of the penne and sauce mixture at the bottom, then layer half of the shredded chicken on top. Sprinkle with a cup of mozzarella and a bit of parmesan. Repeat the layers with the remaining pasta mixture, chicken, cheese, and parmesan. This layering helps distribute flavor and cheese evenly.

Step 3: Cook Low and Slow

Put the lid on and cook on low for 2 ½ to 3 hours. I find cooking on low breaks down the pasta beautifully without it getting mushy. Keep an eye on it near the end—you want the pasta tender but not falling apart.

Step 4: Final Cheese Touch and Serve

Once cooked, remove the lid and sprinkle the final cup of mozzarella cheese on top. Let it melt for a few minutes—if you want to get fancy, you can broil it a little for a golden, bubbly finish, but I usually just cover and let it melt naturally. Add chopped parsley for that fresh pop of color before serving.

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Pro Tips for Making Crock Pot Chicken Alfredo Casserole Recipe

Use Pre-Cooked Chicken: I like to roast or poach chicken breasts ahead of time, then shred—cuts prep time and helps control moisture.
Watch the Pasta Texture: Penne cooks well but check around 2 ½ hours to avoid mushiness—timing can vary by crock pot.
Layer Thoughtfully: Distribute cheese and chicken evenly for bursts of flavor in every bite, not just on top.
Avoid Excess Liquid: Adding too much water dilutes flavor—stick close to the recipe’s measurement for perfect sauce consistency.

How to Serve Crock Pot Chicken Alfredo Casserole Recipe

A white plate holds a serving of penne pasta covered in a creamy, pale off-white sauce. The pasta is mixed with small pieces of white meat and sprinkled with chopped green herbs on top. The plate is placed on a white marbled surface with small green herb leaves scattered around. Nearby, there is a white bowl filled with chopped green herbs and a block of pale yellow cheese on a metal grater. A gold-colored fork rests on a blue and white striped cloth to the right of the plate. photo taken with an iphone --ar 2:3 --v 7 - Crock Pot Chicken Alfredo Casserole, creamy chicken pasta bake, slow cooker Alfredo dinner, cheesy chicken casserole, easy Crock Pot chicken recipe

Garnishes

I always sprinkle some fresh chopped parsley on top just before serving—it adds a nice color contrast and a touch of freshness that cuts through the creamy richness perfectly. Sometimes, I toss a little extra parmesan on the table for those cheese lovers in the group.

Side Dishes

Since the casserole itself is so hearty, I like pairing it with simple green sides—steamed broccoli or a crisp Caesar salad balances the richness nicely. Roasted vegetables or garlic bread also make dreamy accompaniments if you want to make it a bigger meal.

Creative Ways to Present

For a special occasion, I’ve served this casserole in individual ramekins so each guest gets their own perfectly cheesy portion, topped with a sprinkle of fresh basil or even a drizzle of truffle oil. It makes it feel fancy without any extra fuss.

Make Ahead and Storage

Storing Leftovers

Leftovers keep beautifully in an airtight container in the fridge for up to 3 days. I like to portion out servings right away to make reheating easy, plus it helps prevent drying out if you only want a little for lunch.

Freezing

I’ve frozen Crock Pot Chicken Alfredo Casserole Recipe leftovers successfully—just be sure to cool it completely before tightly wrapping or using freezer-safe containers. Thaw overnight in the fridge before reheating for best texture and flavor preservation.

Reheating

Reheating in the microwave works fine for quick meals but for even warmth and to revive that melty cheese goodness, I prefer reheating in a 350°F oven covered with foil until heated through. A quick broil at the end brings back a slightly crispy top if you want.

FAQs

Can I use frozen chicken breasts in this Crock Pot Chicken Alfredo Casserole Recipe?

It’s best to use cooked, thawed chicken for this recipe to ensure even cooking and texture. If using frozen chicken breasts, cook and shred them before layering in the crock pot.
What type of pasta works best in this casserole?

Penne pasta is ideal because it holds sauce well without becoming mushy. Other pasta shapes like rigatoni or fusilli can work but adjust cooking times accordingly.
Can I make this Crock Pot Chicken Alfredo Casserole Recipe dairy-free?

Yes! Use dairy-free Alfredo sauce and cheese alternatives made from nuts or soy. Just keep in mind the texture might be slightly different.
How can I prevent the casserole from becoming too watery?

Stick to the specified amount of water in the recipe, and avoid opening the lid frequently while cooking as it lowers temperature and can affect texture.

Final Thoughts

Honestly, this Crock Pot Chicken Alfredo Casserole Recipe quickly became one of my family’s all-time favorites. It’s comforting, creamy, and so easy to throw together on busy days when you want a homemade meal without the hassle. I love how you can adapt it to your taste, and the slow cooker does all the heavy lifting for you. Go ahead and give it a try—you’ll be so glad you did, and I’m sure it’ll earn a spot in your recipe stash just like it did in mine!