Instructions

1. 1
   Bake or microwave sweet potato in its skin until tender. Let cool.
2. 2
   Cook tortellini according to package directions, drain, and return to the pot.
3. 3
   Meanwhile, heat butter in a small skillet. Add garlic and sauté over low heat until golden (about 1 minute), then remove from heat.
4. 4
   Peel sweet potato and mash well in a small mixing bowl. Add garlic and butter, plus enough milk to make a thick sauce. Season as desired with salt and pepper.
5. 5
   Combine sauce with pasta in the pot. Heat just until sauce is heated through.