In a medium bowl, combine pizza sauce, diced tomatoes, garlic powder, onion powder, dried basil, salt and pepper to a bowl. Mix together.
Preheat the oven to 400°F. Add the three chicken breasts to a square baking dish.
Pour the sauce overtop of the chicken. Place in the oven and bake for 35-40 minutes.
Add the cheese and pepperoni slices. Place back in the oven for another 3-5 minutes.
Serve and Enjoy! Swipe Up For Full Recipe