In a bowl, whisk together the balsamic vinegar, honey, Dijon mustard, 1 tablespoon olive oil, minced garlic, and Italian seasoning.
Pat the chicken dry and season both sides with salt and black pepper. Place the chicken in the marinade and let sit for at least 10 minutes.
Sear the chicken for about 3 minutes per side until golden brown. Pour any leftover marinade over the chicken, then transfer the skillet to the preheated oven.