Place the chopped tomatoes in a bowl. Add the red onion, basil and bocconcini and combine. Season well.
6 tomatoes, 1 red onion, 1 cup basil leaves, 10 cherry bocconcini balls
Toast bread in the toaster until your desired crunch is reached. Add the tomato mix to each piece of toast, then drizzle over the olive oil and balsamic vinegar.