Preheat the oven to 425 degrees F. In a large roasting pan, combine the oil, salt, and black pepper. Add the sweet potatoes and bell peppers and toss to coat well. Roast, stirring occasionally, for 40 minutes, or until the potatoes are tender. Remove from the oven and stir in the vinegar. Place the spinach or arugula in a large serving bowl. Add the potato mixture and toss to coat well. Serve immediately. Makes 4 Servings Per Serving: 336 calories, 7 g protein, 61 g carbohydrates, 8 g fat, 1 g saturated fat, 0 mg cholesterol, 18 g dietary fiber, 312 mg sodium
