01 - Preheat oven to 400°F. Lightly grease a baking dish large enough to accommodate chicken breasts in a single layer.
02 - In a small bowl, whisk together balsamic vinegar, olive oil, honey, garlic, Italian herbs, salt, and pepper until well combined.
03 - Arrange chicken breasts in prepared baking dish. Pour balsamic marinade over chicken, turning pieces to ensure even coating on all sides.
04 - Bake uncovered for 20 minutes to develop initial browning and begin cooking process.
05 - Remove from oven. Place tomato slices over each chicken breast, followed by mozzarella cheese slices.
06 - Return to oven and bake 8-10 minutes longer until chicken reaches internal temperature of 165°F and cheese is fully melted and bubbly.
07 - For golden cheese topping, switch to broil setting for 2-3 minutes, watching closely to prevent burning.
08 - Let chicken rest 3 minutes before serving. Garnish with fresh basil leaves and drizzle with additional balsamic glaze if desired.