
Preheat the oven to 400 degrees F (204 degrees C).
Place chicken breasts into a large baking dish, with enough room to have space between them. Brush with olive oil and season with salt and pepper, then repeat on the other side.
Bake for about 20 minutes, until the internal temperature reaches 150 degrees F (65 degrees C).
Top the chicken with mozzarella, then tomato slices. Bake for 5-10 more minutes, until the internal temperature reaches 165 degrees F (74 degrees C).
Let the chicken rest for 5 minutes. Drizzle with balsamic glaze and top with fresh basil.