If you’ve been waiting for the evenings to turn cool enough to justify a pot simmering on the stove and the smell of sage and butter drifting through the kitchen, this is the recipe that’s been waiting for you too.

Creamy butternut squash pasta is one of those dinners that feels like it took all afternoon but comes together in under 45 minutes. Roasted squash gets blended into a silky, golden sauce, brown butter and sage bring in that deep, nutty warmth that says “fall” the moment it hits the pan, and a scattering of crumbled Italian sausage turns it from a side dish into something you’ll actually build a Tuesday around.

It’s the kind of meal that makes the whole house smell like the season just arrived, and it holds up just as well for a quiet dinner for two as it does for a table full of people who all claim they “don’t really like squash.”

Why You’ll Love This Butternut Squash Pasta

This isn’t a thin, watery squash sauce that separates the second it hits the noodles. Blending the roasted squash with cream gives it real body, the kind that clings to every piece of pasta instead of pooling at the bottom of the bowl. Browning the butter first, rather than just melting it, adds a nutty, almost caramelized depth that plain butter can’t get near, and the sage leaves crisp up right in that butter, turning fragile and almost lacy so they crumble over the top like a garnish you didn’t have to work for.

It’s also a genuinely flexible dinner. Leave out the sausage and it’s a satisfying vegetarian main. Add it in and it becomes something heartier, closer to a one-skillet comfort meal that needs nothing more than crusty bread on the side. Either way, it’s the kind of butternut squash pasta sauce that tastes like it came from a jar of something expensive, minus the jar.

Simple Ingredients

Everything here is easy to find at a regular grocery run, and each ingredient is doing real work in the final dish.

Pasta (penne or rigatoni): Ridged, sturdy shapes catch the creamy squash sauce in every groove, which is exactly what you want here. Smooth pasta shapes tend to let the sauce slide right off.
Butternut squash, cubed and roasted: The heart of the dish. Roasting first rather than boiling concentrates the natural sweetness and gives the sauce a deeper, almost caramelized flavor instead of a watery one.
Butter: Browned until nutty and golden, this becomes the flavor backbone of the whole sauce. Don’t rush this step; those few extra minutes are where the magic actually happens.
Fresh sage leaves: Sage and squash are a classic pairing for a reason the earthy, slightly peppery flavor of sage cuts through the sweetness of the squash and the richness of the cream.
Heavy cream: Loosens the blended squash into a pourable, clingy sauce and adds the richness that makes this feel indulgent rather than “healthy pasta.”
Parmesan, grated: Adds a salty, savory edge and helps thicken the sauce slightly as it melts in.
Italian sausage, cooked and crumbled (optional): Turns the dish from a side into a full dinner. Look for a mild or sweet Italian sausage if you want the squash flavor to stay front and center, or a spicy variety if you want some heat working against the sweetness.
Salt and pepper: Season in layers a little on the squash before roasting, a little more once the sauce comes together rather than all at the end.

Recipe Details

Servings: 4–6
Preparation time: 15 minutes
Cook time: 25 minutes
Total time: About 40 minutes

Recommended Equipment

Baking sheet (for roasting the squash)
Large pot (for the pasta)
Large skillet (for the brown butter sauce)
Blender or immersion blender
Wooden spoon or spatula
Sharp knife and cutting board

What Is Needed

1 lb pasta (penne or rigatoni)
3 cups butternut squash, cubed and roasted
3 tbsp butter
8–10 fresh sage leaves
1/2 cup heavy cream
1/2 cup Parmesan, grated
1/2 lb Italian sausage, cooked and crumbled (optional)
Salt and pepper, to taste

How to Make Butternut Squash Pasta

Roast the Squash: Toss the cubed butternut squash with a little olive oil, salt, and pepper, and roast at 400°F (200°C) for 25–30 minutes, until fork-tender and lightly caramelized at the edges. This step can be done a day ahead if you want to speed up dinner later in the week.

Cook the Pasta: Bring a large pot of salted water to a boil and cook the pasta according to package directions. Before draining, scoop out and reserve about 1/2 cup of the starchy pasta water it’s what helps the sauce come together smoothly later.

Brown the Butter and Sage: In a large skillet over medium heat, melt the butter and add the sage leaves. Cook for about 3 minutes, swirling occasionally, until the butter turns a deep golden color and smells nutty and toasted, and the sage leaves have crisped up. Watch closely in the last minute brown butter can go from perfect to burnt quickly.

Blend the Sauce: Add the roasted squash and heavy cream to a blender (or use an immersion blender directly in the skillet) and blend until completely smooth. Pour the blended squash sauce back into the skillet with the brown butter.

Bring It Together: Stir the Parmesan into the sauce until melted, then fold in the crumbled Italian sausage if using. Thin the sauce with the reserved pasta water, a splash at a time, until it reaches a silky, clingy consistency.

Toss and Serve: Add the cooked pasta directly to the skillet and toss until every piece is coated in sauce. Season with salt and pepper to taste, and serve warm with extra Parmesan and a few of the crisped sage leaves on top.

What to Serve With Butternut Squash Pasta

Warm crusty bread for scraping the skillet clean
A simple arugula salad with lemon vinaigrette to cut the richness
Garlic roasted broccolini
A crisp glass of white wine, if that’s your evening

Nutritional Information

Per serving (based on 6 servings, without sausage). These are estimates and will vary by brand.

Calories: 420
Protein: 12g
Fat: 18g
Carbohydrates: 52g
Protein: 12g

Top Tips

Roast, don’t boil, the squash: Boiling waters down the natural sweetness and leaves you with a thinner, blander sauce. Roasting concentrates the flavor and gives the finished dish that deep, almost caramel-edged taste.

Don’t walk away during the brown butter step: Butter goes from golden and nutty to burnt in under a minute. Keep the heat at medium, swirl the pan often, and pull it the moment it smells toasted and turns an amber color.

Save more pasta water than you think you need: The starchy water is what keeps this butternut squash pasta sauce silky instead of gluey. It’s easy to forget to reserve it, so scoop it out before you drain.

Blend it smooth for the best texture: A few seconds longer in the blender than feels necessary makes the difference between a clumpy sauce and a genuinely creamy one.

Make the components ahead: Roast the squash and brown the butter in advance, then reheat gently and blend just before serving for a faster weeknight version.

Recipe Variations

Vegetarian butternut squash pasta: Simply skip the sausage. The sauce is rich enough to stand entirely on its own.

Spicy butternut squash pasta: Use a spicy Italian sausage, or add a pinch of red pepper flakes to the brown butter while the sage cooks.

Butternut squash pasta with spinach: Wilt a few handfuls of fresh spinach into the sauce right before tossing in the pasta for extra color and nutrients.

Roasted butternut squash pasta with pancetta: Swap the Italian sausage for crisped pancetta for a saltier, more savory take.

Baked butternut squash pasta: Transfer the tossed pasta to a baking dish, top with extra Parmesan, and broil for 3–4 minutes until bubbly and golden on top.

How to Store and Reheat

Refrigerating: Store leftovers in an airtight container in the fridge for up to 4 days.
Freezing: The sauce freezes well on its own for up to 2 months. Freeze before tossing with pasta for the best texture when reheated.
Reheating: Warm gently in a skillet over low heat with a splash of milk or reserved pasta water to loosen the sauce back up. Microwaving works too cover and heat in 30-second bursts, stirring between each.