Zucchini is to quiche as eggplant is to parmigiana. There is no higher calling for this elongated green summer squash than to be sautéed with onions, splashed with wine, tossed with herbs, then married with cheese and eggs into this savory Zucchini Quiche. Not really a quiche, this recipephany has more of an Italian than French accent. A layer of toasted breadcrumbs replaces the pastry crust. Herbs you’d shake into a red sauce awaken the sweetness in the zucchini. And a secret ingredient—ginger—blends in so mysteriously that I dare you to pick it out of the crowd. I’d forgotten where this recipe came from until Elinor Lipman (best-selling novelist and source of Cinnamon Tea…