Preheat your grill to medium heat, around 350°F (175°C). Slice peaches in half and remove pits. Brush with olive oil and grill cut-side down for 4-5 minutes until golden.

Prepare mixed greens in a large salad bowl. Add sliced red onion and toss in fresh blueberries.

In a small bowl, whisk together olive oil, lemon juice, honey or maple syrup, salt, and pepper. Adjust seasoning to taste.

Once peaches are grilled, slice them and fold gently into the salad mixture.

Crumble feta cheese over the salad. Add chopped nuts and fresh herbs.

Drizzle dressing over salad and toss gently to combine. Serve immediately.