Grilled Eggplant and Fresh Herb Salad Subs with Parmesan

Name: Grilled Eggplant and Fresh Herb Salad Subs with Parmesan
Ingredients: 1 1/2 pounds small eggplants, peeled and halved lengthwise; 1/2 cup extra-virgin olive oil, plus more for brushing; Salt and freshly ground pepper; 4 crusty rolls, split; 3 tablespoons red wine vinegar; 1 garlic clove, minced; 1/2 cup finely chopped celery, plus 1/3 cup celery leaves; 1/2 cup flat-leaf parsley leaves; 1/3 cup snipped chives; 1/3 cup basil leaves, torn; 3/4 cup shaved Parmesan cheese (about 2 ounces)