Place sweet potato slices in large bowl, drizzle with olive oil, and add salt and allspice to taste. Mix ingredients until slices are evenly coated in olive oil and spices.
Spread in a single layer on aluminum foil lined baking pan. Bake in a preheated 400 degree oven for 25 minutes.
* For an even sweeter treat, add a little cinnamon and sugar to the mix.