Ingredients
Equipment
Method
Roast the vegetables
- Heat oven to 425F. Toss butternut squash cubes with 1 tablespoon olive oil, salt, and pepper, then spread on a sheet pan and roast for 25 minutes until caramelized, turning once if needed.
- Halve the Brussels sprouts and toss with another 1 tablespoon olive oil, salt, and pepper. Spread on a separate sheet pan and roast for 25 minutes until caramelized and browned at the edges.
Cook pasta and brown the butter
- Cook rigatoni or penne in salted water until al dente. Reserve 1 cup pasta water before draining.
- Melt unsalted butter in a cast iron skillet over medium heat. Add minced garlic and chopped sage and cook until the butter turns golden and nutty, stirring so the garlic browns without burning.
Toss and finish
- Add drained pasta to the cast iron skillet. Pour in pasta water a little at a time and toss until the sauce looks glossy and coats the pasta.
- Add roasted butternut squash and Brussels sprouts to the skillet. Toss to distribute the vegetables, then add grated parmesan and mix until it melts into the sauce.
- Season with additional salt and pepper to taste. Top with toasted hazelnuts or walnuts and serve right away.
Notes
For best browning, roast on separate sheet pans with enough spacing so steam doesn’t accumulate. Store leftovers in an airtight container in the refrigerator up to 3 days; reheat gently in a skillet with a splash of pasta water. Freezing isn’t ideal because the squash and Brussels sprouts can soften after thawing. For a dairy-light option, swap the parmesan for a hard, aged dairy-free alternative and use olive-oil based “butter” instead of browned butter.
