Bruschetta is a classic italian appetizer made with toasted bread topped with a mixture of tomatoes, basil, olive oil, and garlic. It is a colorful and fresh way to enjoy the beautiful bounty of a summer garden. This recipe uses all the gorgeous ingredients of a traditional bruschetta but instead becomes a fresh topping for seared chicken breasts. It transforms what would be an appetizer into a fantastic main dish. If you can't find pearl-sized fresh mozzarella balls, you can cut larger pieces of fresh mozzarella into bite-sized pieces. Make them about the same size and the diced tomatoes for beautiful presentation. Serve this wonderful recipe with a green salad tossed with mushrooms and drizzled with a classic italian vinaigrette. If you still crave that crunch from the toasted bread, you can always offer your guests some homemade crostini on the side. A nice glass of white wine would be the perfect finishing touch to this easy yet elegant meal. For dessert, semifreddo or bomboloni are wonderful italian treats that are always a hit.