Step 1

In a skillet over medium heat, sauté watermelon cubes for 8-10 minutes, stirring often. The watermelon will shed a lot of liquid. You'll know it's ready when there is no extra juice at the bottom of the pan.

Step 2

Transfer cooked watermelon to a container and toss with all other ingredients (except for sesame seeds and macadamia nuts). Toss to coat, then cover and refrigerate. Allow to marinate for at least one hour, but preferably 4+ hours. Sprinkle with chopped macadamia nuts and sesame seeds before serving.