Gather all ingredients and equipment.
Preheat grill to medium-high heat.
Cut sweet potatoes into 1/4 inch thick planks. Place sweet potatoes in a bowl with tomatoes and peppers.
Add the oil, salt, and pepper to the vegetables and toss until evenly coated.
Place the vegetables on the grill and grill them until tender, about 4-5 minutes per side. Remove the vegetables from the grill and serve.
**Note that your choice of sweet peppers may be used – red, yellow, or a mixture of both.
