Preheat a grill or fry pan to medium heat.
Brush both sides of each watermelon triangle with olive oil and season all sides with salt and pepper.
Add a drizzle of honey over each triangle and place them on the grill, grilling each side for about 2 minutes.
Remove and add a little more honey if desired.
Assemble salads by placing 2 watermelon triangles on each plate, then cover with a sprinkle of tomatoes, mozzarella and basil leaves.
Add some salt and pepper on top, then drizzle with balsamic glaze. Serve!