Wash the peaches under cool water. Cut each peach in half and remove the pit, then slice into wedges.

Heat the grill to medium, brush the peach wedges lightly with olive oil, and grill for 2-4 minutes per side until softened.

In a large mixing bowl, combine salad greens, diced red onion, quartered cherry tomatoes, and chopped fresh basil. Toss gently.

Add torn mozzarella and grilled peach slices, then toss gently until combined.

In a small bowl, whisk together olive oil, Dijon mustard, balsamic vinegar, garlic powder, and salt until smooth.

Drizzle dressing over salad and toss gently. Serve immediately.