Heat a grill pan over medium heat. Slice each squash in half lengthwise. If the squash are quite fat, slice them into thirds, and if they are more than 6 inches long, half crosswise too.

Instead, follow the advice of Christie Vanover, owner and pitmaster of Girls Can Grill, who told us, "I love grilling winter squashes like butternut squash and acorn squash." To prep, cut them in ...