Sweet potatoes may taste like a decadent treat, but did you know that they're actually a little lower in calories than white potatoes? They're also more nutritious, providing more fiber and vitamins A and C. Of course, all bets are off when they're candied in brown sugar with marshmallows on top.

Sweet potatoes are perfectly delicious--and much more nutritious--without all the sugary toppings. Bake them in their jackets or cut into cubes, toss with a bit of oil and salt, and roast at 350 degrees for about 30 minutes.