Slice your tomatoes and peaches into slices. If the tomato is pretty large, cut the slices in half so they are bite sized pieces. Arrange in the bottom of your lunch box or container. Top with shredded prosciutto, mozzarella, and fresh basil leaves.
If you are packing up your lunch for work, use an empty spice jar for your salad dressing. Add approximately 1 Tbsp of olive oil and about 2 Tbsp of balsamic vinegar to the bottle. Take a couple pinches of salt into a small ziploc bag.
When ready to eat, drizzle the balsamic dressing over the salad. sprinkle the finishing salt over your salad and enjoy!