Preheat a grill or grill pan to medium-high heat and lightly oil the grates
Brush the cut sides of the peach halves with a little olive oil
Place peaches cut-side down on the grill and cook for 3–4 minutes until grill marks appear
Flip and grill for another 1–2 minutes to soften slightly, then remove and let cool briefly
Slice the grilled peaches into wedges once cool enough to handle
Now assemble the salad:
Add mixed greens to a large serving bowl or platter
Drizzle with 2–3 tablespoons of olive oil, season lightly with salt and pepper, and toss
Top with grilled peach wedges, torn prosciutto, blue cheese crumbles, and nuts
Finish with a generous drizzle of balsamic glaze and any fresh herbs you’re using