Place the chicken and 2 tablespoons of dressing in a glass baking dish. Make sure you turn the chicken to coat. Toss in your fridge (covered) for a few minutes, or throughout the day.
Preheat your oven to 350 degrees. Cook your chicken for 15 minutes.
While that is cooking stir together your tomato, cheese, basil, and remaining dressing. Turn the chicken over and cover with your tomato mixture. Cook an additional 8 to 10 minutes, or until the chicken reaches 160 degrees.