Grilling the Chicken

1. Preheat your grill to medium-high heat.
2. Season the chicken breasts with salt and pepper.
3. In a small bowl, whisk together balsamic vinegar, olive oil, honey, and minced garlic. Pour the marinade over the chicken breasts and let them marinate for at least 30 minutes.

Preparing the Crispy Fried Goat Cheese

1. Set up three shallow bowls: one with flour, one with beaten egg, and one with breadcrumbs.
2. Dredge each slice of goat cheese in flour, then dip it in the beaten egg, and finally coat it with breadcrumbs.
3. Heat oil in a skillet over medium heat and fry the coated goat cheese slices until golden brown and crispy on both sides.
4. Remove from the skillet and set aside on paper towels to drain excess oil.

Grilling and Assembling the Salad

1. Grill the marinated chicken breasts for 6-8 minutes on each side, or until they are cooked through and have grill marks. Remove from the grill and let them rest for a few minutes before slicing them thinly.
2. To make the balsamic vinaigrette, whisk together balsamic vinegar, olive oil, honey, salt, and pepper in a small bowl.
3. In a large salad bowl, combine mixed greens, blackberries, raspberries, sliced avocado, chopped walnuts, and thinly sliced red onion.
4. Drizzle the balsamic vinaigrette over the salad and toss until everything is evenly coated.
5. Divide the salad onto serving plates, top each portion with sliced grilled chicken, and garnish with crispy fried goat cheese rounds.