In this video, Chef John shows you how to create a delectable make-ahead breakfast or brunch casserole. The base of this casserole is made out of day-old bread cubes soaked in an egg custard. Layered with extra sharp Cheddar cheese, spinach, and crispy bacon, this strata is baked until golden and will delight all of your hungry friends and family members. Get Chef John's recipe for Bacon, Cheddar and Spinach Strata.