Begin by adding olive oil to a medium size non-stick pan over low-medium heat with onions, salt, and pepper. Saute until onions begin to turn translucent then add a drizzle of balsamic vinegar and continue to cook, stirring occasionally. Once onions have fully caramelized, remove from heat and set aside.
Grill peaches, half side down over medium heat for 4-5 minutes, until they begin to have visible char marks. Flip the peaches and grill the other side to soften for another 4-5 minutes.
Next, place slices of meat on toast, followed by caramelized onions, mozzarella slices, basil leaves, grilled peaches, and top with micro greens. Finish with a dash of salt/pepper, a drizzle of extra virgin olive oil, and balsamic vinegar.
Serve and enjoy!