Spread sweet potatoes in baking dish, and add olive oil, chili lime and salt.  Mix well.  Cook in microwave for 2 minutes.

Brush olive oil on grill.  Place sweet potatoes on grill and grill on high for 3 minutes or until grill marks appear.  Flip sweet potatoes and reduce heat to 2.  Cover grill and cook an additional 6-8 minutes or until sweet potatoes are tender, but not over cooked.  Remove from grill and serve plain or with dips.