Prep the zucchini: Wash and dry your zucchini thoroughly. Trim off the ends and slice them lengthwise into 1/4-inch thick planks. If your zucchini are really large, you might want to cut them in half first.

Season generously: Brush both sides of each zucchini plank with olive oil. Sprinkle with salt, pepper, and garlic powder. Don't be shy with the seasoning!

Preheat your grill: Heat your grill to medium-high heat (about 400-450°F). Make sure the grates are clean and lightly oiled to prevent sticking.

Grill the zucchini: Place the zucchini planks directly on the grill grates. Cook for 3-4 minutes per side until you see nice grill marks and the zucchini is tender but not mushy.

Add the cheese: Transfer the grilled zucchini to a serving platter while still hot. Immediately crumble goat cheese over the top so it gets slightly melty.

Garnish and serve: Sprinkle with fresh basil, drizzle with balsamic glaze if using, and add a pinch of red pepper flakes for heat. Serve warm or at room temperature.