Place the tomatoes, mozzarella balls and freshly chopped basil in a large bowl.
In a small bowl, whisk together the olive oil, balsamic vinegar, salt, pepper and dried oregano.
Pour the dressing over the tomato mixture and toss to combine. Refrigerate until ready to serve.
Add more basil or salt and pepper to taste. Drizzle with balsamic glaze if desired.
