Line a baking sheet with parchment paper. Toss the cubed butternut squash with olive oil, salt, and pepper, then arrange in a single layer on the baking sheet.
Roast the squash for 25-30 minutes, stirring halfway through, until tender and caramelized.
While the squash is roasting, cook the pasta in salted water according to package instructions until al dente. Drain and set aside.
In a skillet, heat a little olive oil over medium heat and add the fresh sage leaves. Cook for about 2 minutes until crispy.