1. Preheat grill to 400°. Mix 1/4 cup olive oil with herbes de Provence and salt, and brush on vegetables.
2. Grill vegetables 10 minutes or until soft. Brush bread with remaining olive oil, and sprinkle with pepper. Grill bread, cut sides down, 3 to 4 minutes or until crispy.
3. Assemble vegetables and cheese on half of the French bread loaf. Close sandwich, and grill until cheese melts. Slice and serve immediately.