This simple, no-fuss, make-ahead Berry Breakfast Bagel French Toast Casserole is just the thing for a lazy weekend breakfast or brunch. Prep it the night before and it's ready to go in the oven when you wake up!
If your bagels are super soft and fresh still, dry them out a bit by spreading the cut up bagels in a single layer on a baking sheet and toasting them in a 300 degree oven for 15 minutes until lightly browned before adding them to the baking dish and covering them with the egg mixture to soak.