Ingredients
Method
- Preheat oven to 425°F. Toss sweet potato with olive oil, 1/4 tsp salt, and pepper.
- Roast on a sheet pan 20-25 minutes until tender and slightly browned. Stir once halfway.
- Boil pasta in salted water per package directions. Drain, reserving 1/4 cup pasta water.
- Return pasta to pot off heat. Stir in butter and reserved water until glossy.
- Fold in roasted sweet potato and sprinkle Parmesan if using. Taste and add salt if needed.