NYT Cooking: In this highly zesty recipe, thick slices of zucchini are broiled until golden and tender, then topped with milky mozzarella and bread crumbs flecked with anchovy and garlic. While it bakes, the cheese melts, the crumbs crisp and the whole thing becomes vaguely reminiscent of a lighter parmigiana — but without the frying. If you're feeding more than two, this recipe can be doubled. Just make su...