If you’re looking for a creamy slow cooker pasta recipe that feels cozy, comforting, and perfect for fall and winter, this Slow Cooker Creamy Butternut Squash Chicken Rigatoni is a must-try. Tender chicken, hearty rigatoni, and a velvety butternut squash cream sauce come together in one easy crockpot meal.

It’s rich yet balanced, savory with hints of sage and nutmeg, and simple enough for busy weeknights.

Why You’ll Love This Recipe

•  One-pot slow cooker meal

•  Creamy without being overly heavy

•  Perfect fall-inspired flavors

• Family-friendly comfort food

•  Great for leftovers

Ingredients

• 1 1/2 cups canned or packaged butternut squash purée

• 1 1/2 cups low-sodium chicken broth

• 1 cup heavy cream

• 1/2 cup finely grated Parmesan cheese (plus extra for serving)

• 2 teaspoons dried rubbed sage (or 1 tablespoon finely chopped fresh sage)

• 1/4 teaspoon ground nutmeg

• 1 teaspoon garlic powder

• 1 teaspoon onion powder

• 1 1/4 teaspoons kosher salt (plus more to taste)

• 1/2 teaspoon freshly ground black pepper

• 2 tablespoons olive oil

• 1 pound boneless, skinless chicken breasts

• 12 ounces dry rigatoni pasta

• 1 small yellow onion, thinly sliced

• 2 cloves garlic, minced

• 1/2 cup water (optional, for thinning sauce)

• Fresh parsley or chopped sage for garnish (optional)

Step-by-Step Instructions

Step 1: Make the Butternut Squash Cream Sauce

In a large mixing bowl or measuring pitcher, whisk together:

• Butternut squash purée

• Chicken broth

• Heavy cream

• Grated Parmesan

• Sage

• Nutmeg

• Garlic powder

• Onion powder

• Kosher salt

• Black pepper

• Olive oil

Whisk until smooth and well combined. This is your single pour-over sauce mixture.

Step 2: Prepare the Slow Cooker

Lightly grease the insert of a 6-quart slow cooker with olive oil or nonstick spray. This helps prevent sticking and makes cleanup easier.

Step 3: Add the Chicken and Aromatics

Place the raw chicken breasts in a single layer on the bottom.

Scatter:

• Sliced yellow onion

• Minced garlic

Evenly over and around the chicken for maximum flavor.

Step 4: Layer the Pasta

Add the dry rigatoni on top of the chicken and onions.

Spread it evenly, but do not stir. Keeping the pasta on top helps it cook evenly in the sauce.

Step 5: Pour the Sauce

Slowly pour the butternut squash cream mixture over everything.

Make sure:

• All pasta is moistened

• Most of it is submerged

If needed, add up to 1/2 cup water to help cover exposed pasta.

Gently press down any pasta sticking out of the liquid.

Step 6: Cook

Cover and cook:

• LOW for 3 1/2 to 4 1/2 hours
  OR

• HIGH for 2 to 2 1/2 hours

Cooking times vary by slow cooker, so begin checking early.

The dish is done when:

• Chicken reaches 165°F internally

• Rigatoni is tender but still holds its shape

Step 7: Shred and Adjust

Once cooked:

1. Use two forks to shred or slice the chicken directly in the slow cooker.

2. Stir gently to combine everything into the creamy sauce.

If the sauce feels too thick:

• Add a splash of warm water or chicken broth

• Stir until desired consistency

Taste and adjust salt and pepper if needed.

Step 8: Rest Before Serving

Cover and let the pasta sit for about 5 minutes.

This allows:

• The sauce to thicken slightly

• The flavors to fully meld

• The rigatoni to absorb extra creaminess

Step 9: Garnish and Serve

Serve hot, topped with:

• Extra grated Parmesan

• Chopped fresh parsley or sage

The combination of creamy squash and savory chicken makes this an unforgettable comfort dish.

Expert Tips for Success

• Don’t overcook the pasta—check early.

•  If reheating later, add a splash of broth.

•  Use boneless chicken thighs for extra tenderness.

Variations & Customization Ideas

Make It Lighter

Swap half of the heavy cream with whole milk or half-and-half.

Add More Vegetables

During the last 15 minutes on LOW:

• Stir in 2 cups baby spinach or chopped kale.

You can also add:

• 1–2 cups broccoli florets

• Frozen peas

Smokier Flavor

Add 1/4 teaspoon smoked paprika to the sauce mixture.

Sage Brown Butter Finish

Brown 2 tablespoons butter with fresh sage leaves and drizzle over the pasta before serving.

Storage & Reheating

Refrigerator:
Store in an airtight container for up to 4 days.

Reheat:
Warm gently on stovetop or microwave with extra broth or water.

Freezer:
Not ideal due to cream-based sauce, but can be frozen for up to 2 months if needed.

Frequently Asked Questions

Can I use frozen chicken?

It’s best to thaw first for even cooking and food safety.

Can I cook the pasta separately?

Yes, but this recipe is designed for convenience with everything cooking together.

Can I substitute penne for rigatoni?

Absolutely. Use the same amount and check for doneness early.

Final Thoughts

This Slow Cooker Creamy Butternut Squash Chicken Rigatoni is the perfect blend of comfort and elegance. The sweet earthiness of butternut squash, savory sage, tender chicken, and creamy Parmesan create a dish that feels special yet effortless.

enjoy!