Caprese Stuffed Chicken

Name: Caprese Stuffed Chicken
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: American
Ingredients: 1/3 cup Olive oil; 1/4 cup Balsamic vinegar (plus more for drizzle after baking); 2 teaspoons Dijon mustard; 2 teaspoons Italian seasoning; 2 cloves Garlic (minced); 1/2 teaspoon Salt; 1/2 teaspoon Pepper; 4 Boneless, skinless chicken breasts (trimmed, approx. 6-8 ounces each); 2 Medium Roma tomatoes (halved lengthwise then thinly sliced to make half-moon shape slices); 8 ounces Fresh mozzarella (sliced thin, then cut in half to make half-moon shape slices); 1 cup Large basil leaves (cut in half, plus more for garnish if desired); Balsamic glaze for garnish (optional)