Prepare the Ingredients
Slice the tomato and fresh mozzarella into even slices. Wash and pat dry the basil leaves.
Assemble the Sandwich
On one slice of bread, layer the fresh mozzarella, followed by the tomato slices. Add the basil leaves on top of the tomato, and drizzle with olive oil. Season with a pinch of salt and pepper to taste. Optionally, drizzle a little balsamic glaze or vinegar over the tomatoes and mozzarella for added flavor.
Top and Press
Place the second slice of bread on top to complete the sandwich. If desired, you can lightly toast the sandwich in a grill pan or sandwich press for a warm, crispy version. Grill for about 2-3 minutes on each side, until the bread is golden and the cheese starts to melt.
Serve
Cut the sandwich in half and serve immediately, garnished with extra basil leaves if desired.