Preheat BBQ grill to medium heat and line with foil. Brush both sides of bread slices with olive oil. Grill bread on one side until lightly toasted with grill marks, for about 2 minutes.
Place Nectara™ nectarines and cheese on the grilled side of the bread slices. Grill again for 2-3 minutes more.
Drizzle sandwiches with honey and vinegar, season with salt and pepper.
