Grilled Sweet Potatoes and Apples

If you are not a fan of sweet potatoes, I think this recipe will change your mind.  And if not, maybe some scientific facts will.  After all, I sometimes find it easier to eat healthy when I know how good the food is for me.  Sweet potatoes are probably under eaten here in America.  I found a statistic that states in 1943 sweet potatoes were consumed 21.7 pounds per capita and in 2007 it...