Turn on broiler or preheat grill. Combine olive oil and garlic in a small bowl and stir to combine. If desired, rub the apple slices with half a lemon to prevent browning. Wrap apple slices with prosciutto. If preparing ahead of time, refrigerate until ready to use.

Working at an angle, cut 12 slices of baguette between 1/4 and 1/2-inch thick. Brush slices with garlic-olive oil mixture. Broil or grill for a few minutes until lightly toasted.

Spread a thin layer of cheese on the toasted bread. Top with prosciutto-wrapped apple slices. Using kitchen shears, snip herbs over the top and serve.