Preheat oven to 400°. Place chicken on a cutting board and make 5 to 6 slits in each breast, being careful not to cut through completely. Transfer to a small baking sheet.
Drizzle with olive oil then season chicken all over with salt, pepper and Italian seasoning. Stuff each breast with mozzarella, spinach and tomatoes.
Bake until chicken is cooked through and no longer pink, about 25 minutes. Garnish with fresh basil then drizzle balsamic glaze on top.
Recipe by 5* trending recipes with videos at https://food.theffeed.com/2019/01/03/caprese-stuffed-chicken/