Elizabeth Poett’s French Onion Strata

French onion soup meets savory bread pudding in this absolute showstopper of a breakfast. It’s everything you love about the soup, with its sweet caramelized onions, browned, bubbling cheese, and crusty French bread, but in the form of a crowd-pleasing casserole. The best part about it, according to Elizabeth, author of The Ranch Table cookbook, is that you can prep it