Preheat oven to 375 degrees F.
Please chicken breasts in a baking pan coated with non stick spray, sprinkle salt
In a food processor, place cilantro, parsley, garlic, vinegar, olive oil, salt and pepper. Pulse until smooth. Place in bowl and add Greek yogurt.
Spoon herb mixture over each chicken breast. Top with tomato, sprinkle each tomato with pinch of salt, and top with cheese.
Bake at 375 for 30 min or until juices run clear on chicken.