Sherry vinegar, red-pepper flakes, and fresh mint are all you need to amp up these flame-kissed veggies. It's a crowd-pleasing side dish you can make when you the grilling season begins.
Preheat grill to medium-high. Slice zucchini lengthwise, about 1/4 inch thick. Brush with oil; season with salt. Grill, turning frequently, until softened and browned in spots, about 8 minutes. Toss with vinegar and a pinch of red-pepper flakes. Let cool to room temperature. Sprinkle with mint.