01 - 
                Preheat your grill to medium-high heat. Lightly oil the grill grates to prevent sticking.
              
              
              
                02 - 
                Brush the cut sides of the peach halves with a little olive oil. Place the peaches cut-side down on the preheated grill. Grill for about 3-4 minutes until they have nice grill marks and are slightly softened. Remove from the grill and let cool slightly. Slice each half into wedges.
              
              
              
                03 - 
                In a small bowl or a jar with a lid, combine the olive oil, balsamic vinegar, honey, Dijon mustard, salt, and pepper. Whisk or shake until well combined.
              
              
              
                04 - 
                In a large salad bowl, add the mixed greens. Top with the grilled peach wedges, fresh blueberries, crumbled feta cheese (if using), and toasted nuts.
              
              
              
                05 - 
                Drizzle the dressing over the salad. Toss gently to combine, ensuring all the ingredients are evenly coated with the dressing.
              
              
              
                06 - 
                Serve the salad immediately as a refreshing and delicious appetizer, side dish, or light lunch.