Place a piece of mozzarella and a leaf of basil on top of each tomato slice. Drizzle with olive oil and balsamic, lightly sprinkling with salt if desired. Let it set for 10-15 minutes before serving to allow the flavors to meld.
Variations: Toss cherry tomatoes, fresh mozzarella balls, and chopped basil in a bowl and drizzle with olive oil and balsamic vinegar to create a simple salad.
Photo Credit: Alexis Lamster