Slice your heirloom tomatoes. Note: I think it looks prettier if you use two colors, but you can definitely use all red or all yellow.
Plate your first tomato slice (red) and season with salt and pepper.
Layer two basil leaves, and top with cheese.
Top with watermelon slice.
Repeat steps 1-4, making another layer, and ending with watermelon on top.
Secure the stack with a piece of fresh rosemary.
Drizzle with olive oil and balsamic reduction.
Serve and enjoy! Note: I chopped my salad to make it easier to eat.