01 - Set your grill to medium-high heat, targeting approximately 400°F. Allow grates to heat thoroughly for optimal charring.
02 - Place zucchini rounds in a large bowl and drizzle with olive oil. Sprinkle with sea salt, black pepper, and garlic powder. Toss until every slice is evenly coated.
03 - Arrange seasoned zucchini in a single layer directly on the hot grill grates. Cook for 4 to 5 minutes per side until prominent grill marks develop and the flesh is tender yet still holds its shape.
04 - Using tongs, carefully remove the zucchini from the grill and arrange on a serving platter while still hot.
05 - While the zucchini is still warm, scatter the grated Parmesan evenly over the slices so the residual heat softens and slightly melts the cheese.
06 - Finish with a generous sprinkle of chopped basil, parsley, and chives across the top.
07 - Present immediately while warm, or allow to cool to room temperature. Pairs well with chilled Sauvignon Blanc or Pinot Grigio.