To save time, place your salad bowl on metric scales and add the ingredients as you prep them, using the tare (zero) function in between each addition.
Metric Kitchen Scales are inexpensive and take up very little space. Click
HERE for the ones I use. For U.S. option click
HERE.
Italian seedless watermelon is by far your best choice, if you can find it. Otherwise, choose the brightest red flesh watermelon (ask for it to be cut before you buy).
Macros calculated using the BDA database.