Heat oven to 375°F. Place a rack in upper third of oven. Line a baking sheet with parchment paper and place sweet potato and garlic. Generously drizzle olive oil over sweet potato and toss to coat. Roast for 20 minutes and toss; roast for another 20 minutes or until potato is tender and browned. Cool, then transfer to a blender and puree until smooth. Add tahini, salt and squeeze in lime juice; pulse to mix. With blender on low, gradually add water until desired consistency. Serves 8.
Approximate Nutrient Analysis per serving (based on 2 Tablespoons of drizzled olive oil):
160 calories, 7 g fat, 1 g saturated fat, 0 mg cholesterol, 500 mg sodium, 24 g carbohydrate, 3 g fiber, 7 g sugar, 3 g protein