Butternut Squash Penne - Rest Less

Ingredients

• 1 butternut squash, about 2 lb (900 g), peeled, seeded, and cut into 1 in (2.5 cm) cubes
• 1 red onion, cut into eighths
• 3 tbsp olive oil, plus more for serving
• 2 tbsp balsamic vinegar
• salt and freshly ground black pepper
• 2 garlic cloves, peeled and minced
• 1 lb (450 g) dried penne
• 1 cup shredded Gruyere cheese
• 1 tbsp chopped sage
• freshly grated Parmesan cheese
• 1/3 cup creme fraiche