I'll leave you with my favorite recipe for sweet potatoes. I found it in the May 2004 edition of Gourmet magazine. I fell in love with it the first time I made it. It is great with grilled pork or chicken.
Lime Cilantro Sweet Potatoes
2 lb sweet potatoes, peeled and cut into 3/4-inch pieces
3 tablespoons extra-virgin olive oil
3/4 teaspoon salt
1/4 teaspoon cayenne
1/2 teaspoon finely grated fresh lime zest
1 tablespoon fresh lime juice
1/4 cup chopped fresh cilantro
Put oven rack in lower third of oven and preheat oven to 425°F. Toss sweet potatoes with 2 tablespoons oil and 1/4 teaspoon salt in a shallow baking pan. Arrange potatoes in 1 layer and roast, stirring halfway through roasting, until tender, about 25 minutes total.
Stir together cayenne, zest, and remaining 1/2 teaspoon salt in a small bowl. Whisk together lime juice and remaining tablespoon oil in a medium bowl, then add potatoes. Sprinkle with cayenne mixture and cilantro, stirring gently to combine.