Orange-and-Cinnamon French Toast Casserole

Buy croissants in bulk at a warehouse store for the best deal, and then let them get stale. They are naturally soft, so if using fresh, split and toast lightly or leave out for several hours to dry before assembling. You can also use an Italian or sourdough bread loaf, but cut off any hard crusts. You can take this to the next level by sprinkling a cup of chocolate chips over the bread before pouring the egg mixture over the casserole. Save the orange you used for the brown sugar mixture. P