Bring a chargrill or heavy-based fry pan to medium/high heat.
Slice bread thinly on an angle and brush with olive oil on both sides.
Place bread slices in batches on the hot pan and press down with a spatula.
Once golden and crisp, turn and repeat the process, remove crisped bread slices, and set aside.
Working in batches, assemble each slice of toasted/grilled bread with a ½ slice of prosciutto folded.
Add a few pieces of arugula, some crumbled goat cheese, a few red and green grape slices, and lightly drizzle with balsamic glaze.
Add a light sprinkle of flake salt and pepper if desired.
Serve immediately and enjoy!