Home Health-Fitness Sweet Potatoes…only 93 cal per serving . Roast it! Preheat oven to 375F. Wash and peel 4 med sweet potatoes and cut into 1 pieces. Toss in large bowl with 1 Tbsp olive oil, 1/4 c pure maple syrup, 1/4 tsp salt, 1/2 tsp cinnamon, a pinch of nutmeg, and 1/4 c chopped pecans. Place mixture in 13 x 9 baking dish. Roast until fork-tender, about 40 minutes. Serves 4.