Gather all the necessary ingredients: boneless, skinless chicken breasts, fresh mozzarella cheese, ripe tomatoes, fresh basil leaves, balsamic glaze, olive oil, salt, and pepper.
Preheat your grill to medium-high heat. Make sure it's clean and lightly oiled to prevent sticking.
Season the chicken breasts with salt, pepper, and a drizzle of olive oil. This adds flavor and helps to prevent the chicken from drying out during grilling.
Place the seasoned chicken breasts on the preheated grill. Cook for about 6-7 minutes on each side, or until the chicken is fully cooked through and has nice grill marks. Cooking time may vary depending on the thickness of the chicken breasts.
While the chicken is grilling, slice the tomatoes and fresh mozzarella cheese into thick slices. You'll want them to be similar in size to the chicken breasts.
Once the chicken is cooked, remove it from the grill and place it on a serving platter or individual plates. Top each chicken breast with slices of tomato, fresh mozzarella cheese, and fresh basil leaves.
Drizzle the assembled chicken breasts with balsamic glaze. You can use store-bought balsamic glaze or make your own by reducing balsamic vinegar until it thickens.
Serve the Grilled Chicken Caprese immediately while it's still warm. The melted mozzarella and fresh basil will complement the juicy grilled chicken perfectly. Enjoy as a main course with a side salad or grilled vegetables for a complete meal.