Combine the olive oil, salt and pepper in a small bowl, then brush or gently toss the vegetables with the oil until well coated.

Preheat the grill to medium high. Turn the heat down to medium, then place the vegetables on the grill in a single layer and cook on the first side until nice grill marks form, about 3-4 minutes. Flip the vegetables and continue cooking until tender, about 3-4 minutes more. Remove from heat and allow to cool slightly.

When the vegetables are cool enough to handle, coarsely chop them and place them in a large bowl. Add the feta cheese and basil, and stir in enough balsamic dressing to coat.

Serve warm or room temperature, and enjoy!