Autumn Sausage Pasta with Butternut & Brussels

The first forkful tastes like fall: sweet roasted butternut, caramelized Brussels sprouts, and warm sage folded into silky pasta. Autumn Sausage Pasta brings bright-roast vegetables and savory Italian sausage together in a creamy, lightly spiced sauce. I developed this version after testing it eight times on weeknights and at a busy fall pop-up; those trials refined the balance of sweetness, acid, and fat so the dish never feels heavy. This recipe is simple enough for a weekday but has a restaurant feel, thanks to a quick pan-roast for the veg and a splash of cream to carry the sauce. Read on for exact timing, metric and imperial measurements, and fail-proof tips so your first try matches mine.

If you love squash-and-sausage combos, also see my take on butternut squash gnocchi and sausage for a pillowy alternative to pasta.

Why This Recipe Works

Roasting the butternut and Brussels sprouts concentrates their sweetness and adds slight caramelization for depth.
Browning the sausage builds Maillard flavor. Those browned bits deglaze the pan and flavor the sauce.
A splash of pasta cooking water emulsifies the sauce, making it cling to each noodle.
Fresh sage in the pan with butter crisps and perfumes the oil, giving an autumnal herb note without overpowering.
Short cook times keep vegetables tender but not mushy, balancing texture with creamy sauce.

Ingredients Breakdown

400 g (14 oz) dried rigatoni or penne — sturdy tubes hold sauce. Rigatoni is best for catching diced sausage and squash. If using fresh pasta, reduce cooking time by half.
450 g (1 lb) Italian sausage, casings removed — use sweet or spicy based on preference. Pork carries flavor; turkey sausage works but is leaner and less rich.
500 g (1 lb) butternut squash, peeled and cut into 1.5 cm (1/2 in) cubes — cubes that size roast evenly. Larger pieces take longer.
300 g (10–12 oz) Brussels sprouts, trimmed and halved — halved sides brown flat for caramelized flavor.
1 medium yellow onion, finely diced (about 150 g / 1 cup) — provides savory depth.
3 garlic cloves, minced — add near the end to avoid burning.
30 g (2 tbsp) unsalted butter and 2 tbsp (30 ml) olive oil — butter for flavor, oil to raise smoking point.
120 ml (1/2 cup) dry white wine or chicken stock — deglazes the pan. Use stock for alcohol-free version.
240 ml (1 cup) heavy cream — gives sauce body. For lighter result use 240 ml (1 cup) half-and-half.
60 g (1/2 cup) finely grated Parmesan, plus extra for serving — salt and umami.
1 tsp (1.5 g) kosher salt, plus more to finish — adjust to taste. If using Morton’s salt, use about 1/2 tsp.
1/2 tsp (1 g) freshly ground black pepper.
1/4 tsp (0.5 g) red pepper flakes — optional for heat.
10 g (6–8) fresh sage leaves, thinly sliced — fry briefly in butter to release aroma.
480–720 ml (2–3 cups) reserved pasta cooking water — used to loosen the sauce and help it cling.

Substitutions with impact warnings:

Swap sweet sausage for spicy: increases heat and can overshadow the squash’s sweetness.
Replace heavy cream with coconut cream for dairy-free: flavor shifts noticeably and is less Parmesan-friendly.
Gluten-free pasta: use a firm brand and cook until al dente to avoid mushy texture.

Essential Equipment

Rimmed baking sheet (30 x 40 cm / 12 x 16 in) for roasting — rim prevents sliding pieces.
Large pot for boiling pasta — 5–6 L (5–6 qt) capacity.
Large skillet (30 cm / 12 in) with good heat distribution — stainless steel or cast iron preferred.
Microplane or fine grater for Parmesan.
Tongs and slotted spoon for transferring sausage and veg.
If you don’t have a rimmed baking sheet, use two baking sheets and rotate halfway through roasting.
A digital kitchen thermometer is handy if you prefer checking sausage for 74°C (165°F) doneness.

Step-by-Step Instructions

Makes 4 servings. Prep time 20 minutes. Cook time 30 minutes. Inactive time none. Total time about 50 minutes.

Step 1: Roast the Butternut and Brussels

Preheat the oven to 220°C (425°F). Toss 500 g (1 lb) butternut squash and 300 g (10–12 oz) halved Brussels sprouts with 2 tbsp (30 ml) olive oil, 1/2 tsp salt, and 1/4 tsp pepper. Spread in a single layer on a rimmed sheet and roast 20–25 minutes, tossing once, until edges are browned and squash is tender.

Step 2: Cook the Pasta

Bring a large pot of salted water to a rolling boil. Add 400 g (14 oz) rigatoni and cook until very al dente, about 9–11 minutes (check package). Reserve 480–720 ml (2–3 cups) pasta water, then drain.

Step 3: Brown the Sausage

While pasta cooks, heat a large skillet over medium-high and add 30 g (2 tbsp) butter. Crumble 450 g (1 lb) sausage into the pan and brown for 6–8 minutes, breaking it up, until nicely caramelized. Transfer sausage to a bowl, leaving the fat in the pan.

Step 4: Sauté Onion, Sage, and Garlic

Reduce heat to medium. Add 1 medium diced onion and sauté 4–5 minutes until soft and translucent. Add minced garlic and thinly sliced sage and cook 30–45 seconds, until fragrant. Do not let the garlic burn.

Step 5: Deglaze and Build the Sauce

Pour in 120 ml (1/2 cup) dry white wine or stock and scrape browned bits for 1 minute. Stir in 240 ml (1 cup) heavy cream and simmer 3–4 minutes until slightly thickened. Return the sausage and roasted veg to the pan and stir to combine.

Step 6: Finish with Pasta and Cheese

Add the drained pasta and 480–720 ml (2–3 cups) reserved pasta water, starting with 480 ml (2 cups). Toss vigorously for 1–2 minutes until the sauce emulsifies and clings. Stir in 60 g (1/2 cup) grated Parmesan; add more pasta water if needed. Taste and adjust salt and pepper. Serve with extra Parmesan and red pepper flakes.

Expert Tips & Pro Techniques

Brown sausage in a hot pan and resist crowding. More surface contact equals more flavor.
Save pasta water: its starch is the secret to a glossy sauce that sticks to noodles.
Common mistake: overcooked vegetables. Roast until just tender; they will finish in the sauce.
Make-ahead: Roast the squash and Brussels up to 24 hours ahead and refrigerate in an airtight container.
Professional technique adapted for home cooks: crisp sage by frying leaves in butter until lacy, then drain on paper towel. It adds crunch and concentrated aroma.
If your sauce is thin, simmer uncovered for 1–2 minutes, or stir in an extra 2 tbsp (15 g) grated cheese to thicken.
To control salt, skip adding Parmesan at first, then finish and taste before salting.

Try a spicy skillet method to adapt one-pan timing tricks for busy nights.

Storage & Reheating

Refrigerator: Cool to room temp then store in an airtight container for up to 3 days. Reheat gently to avoid drying.
Freezer: This dish freezes, but texture of the roasted veg softens. Freeze in a shallow container for up to 2 months. Thaw overnight in the fridge before reheating.
Reheating: Reheat in a wide skillet over medium heat with a splash of water or stock, stirring until hot, 6–8 minutes. For a fresher finish, add 1 tbsp (15 ml) cream and 1–2 tbsp (15–30 ml) pasta water. Avoid microwaving if you want to keep texture.

Variations & Substitutions

Vegetarian Version: Replace sausage with 400 g (14 oz) cooked white beans and 2 tbsp (15 g) toasted walnuts for texture. Keep the same squash and Brussels; omit cream or use a cashew cream substitute.
Gluten-Free Version: Swap to 400 g (14 oz) certified GF pasta. Cook according to package instructions and keep sauce slightly thinner; GF pasta can thicken sauce.
Lighter Version: Use 240 ml (1 cup) half-and-half instead of cream and 2 tbsp (30 ml) olive oil instead of butter. Flavor will be lighter and less rich; increase Parmesan by 1–2 tbsp to compensate.
Sausage Swap: Use 450 g (1 lb) fennel-forward Italian pork sausage for traditional flavor or 450 g (1 lb) chicken apple sausage for sweeter notes. No timing change necessary.
One-pan Skillet Shortcut: Brown sausage and soften onions, then add small diced squash and a splash of stock and cover to steam 10–12 minutes before adding Brussels for a quicker, one-pan approach. Reduce oven roasting time to finish browning under high heat for 5 minutes.

See a rigatoni-based sausage pasta for a denser, cheesy twist on this format.

Serving Suggestions & Pairings

A crisp green salad with lemon vinaigrette cuts the richness. Pair with shaved fennel or arugula.
Bread: Serve with crusty country bread or garlic toast to mop up the sauce.
Wine: A medium-bodied white like Pinot Gris or a light red like Beaujolais works well.
Garnish: Finish with toasted pumpkin seeds and a drizzle of extra-virgin olive oil.
For a brunch-style approach, serve smaller portions beside cheesy breakfast sausage pinwheels for a seasonal spread.

Nutrition Information

Per serving (makes 4 servings). Serving size: about 1 heaping bowl (approximately 450 g).

Calories: 680 kcal
Total Fat: 35 g
Saturated Fat: 15 g
Cholesterol: 120 mg
Sodium: 760 mg
Total Carbohydrates: 64 g
Dietary Fiber: 6 g
Sugars: 8 g
Protein: 28 g

Nutrition values are estimates. Actual values may vary based on specific ingredients and preparation methods.

Frequently Asked Questions

Q: Why did my pasta sauce separate or look greasy?
A: If the pan was too hot, the cream can break and separate. Lower heat, add a bit of pasta water, and whisk gently until smooth.

Q: Can I make this without eggs or dairy?
A: Yes. Use a dairy-free cream like blended cashews or coconut cream and skip cheese. The texture and flavor will shift toward a nuttier profile.

Q: Can I double this recipe for a crowd?
A: Yes. Use two large pans or work in batches when browning sausage and roasting veg. Increase roasting time slightly if pieces crowd the baking sheet.

Q: Can I prepare this the night before?
A: Absolutely. Roast the vegetables and cook the sausage ahead. Reheat the components and toss with freshly cooked pasta for the best texture.

Q: How long does this keep in the fridge?
A: Stored airtight, it will keep 3 days in the refrigerator. Reheat gently on the stove, adding a splash of water or stock.

Q: My vegetables were soggy. What went wrong?
A: They likely steamed instead of roasting. Use a hot oven (220°C / 425°F), spread pieces in a single layer, and avoid overcrowding the pan.

Q: Is there a lower-fat way to get the same mouthfeel?
A: Use half-and-half plus an extra 1–2 tbsp of grated Parmesan and finish with 1 tbsp (15 g) butter for richness without full cream.

Conclusion

This Autumn Sausage Pasta is a reliable weeknight winner that still tastes special. If you want a variation that leans toward a vegetable-forward sheet-pan meal, see Autumn Dinner with Sausage, Pasta, Brussels Sprouts and Butternut … for another roast-and-toss approach. For a slightly different seasoning profile with sage and a sweeter squash focus, try Butternut Squash, Sage & Sausage Pasta – All Types of Bowls for inspiration.