Zucchini, Spring Onion, and Sun-Dried Tomato Strata

A strata is a fancy name for a savory bread pudding. Bread puddings are a great way to turn old bread and a bunch of scraps you have lying around your kitchen into something rich and satisfying. It was hard for me to decide what vegetables to use in this recipe, as there really are a million options. A few of my other favorite combinations are cherry tomatoes, caramelized onions, and corn; ham and cheese; or butternut squash, kale, and caramelized onions. Also feel free to substitute