01 - Preheat a grill or grill pan over medium-high heat until properly heated for searing.
02 - Brush the chicken breasts and peach halves with olive oil and season generously with salt and freshly ground black pepper on all sides.
03 - Grill the chicken breasts for 5 to 6 minutes per side until fully cooked through and juices run clear. Grill the peach halves cut-side down for 2 to 3 minutes until distinct grill marks form and the fruit softens slightly. Remove both from the grill and let rest briefly.
04 - Slice the grilled chicken thinly against the grain and cut each peach half into even wedges.
05 - Place the chopped kale in a large bowl, add a pinch of salt, and massage the leaves firmly with your hands for 1 to 2 minutes until they darken in color and become tender.
06 - Add the thinly sliced red onion, halved cherry tomatoes, and toasted almonds to the massaged kale and toss to distribute evenly.
07 - In a small bowl, whisk together the extra-virgin olive oil, fresh lemon juice, honey, chopped basil, chopped mint, and Dijon mustard until fully emulsified and creamy. Season with salt and pepper to taste.
08 - Add the sliced grilled chicken and peach wedges to the salad bowl. Drizzle the basil mint vinaigrette over the top and toss gently until all ingredients are evenly coated.
09 - Scatter the crumbled goat cheese over the salad if using, and serve immediately while the peaches are still slightly warm.