If you find that your veggies are turning out soggy instead of more crispy you can blame the high water content inside of these greens. To help combat this little problem you can let your zucchini rest on paper towels after being cut, while the grill preheats. This will help to absorb some of the moisture inside. You can also "sweat" the zucchini by sprinkling salt over the cut side and letting it draw out excess moisture for a few minutes before grilling.