These breakfast casserole ideas will make it easy to prep breakfast ahead of time and then simply finish the cooking process in the morning. Keep reading to see how I use the prep-ahead method of cooking to make breakfast casseroles a good idea for busy moms. I don’t know about you, but I find breakfast to be the most difficult meal to get on the table. I either do a great job and we all sit down to eat together or we’re all scattered and likely grabbing a bowl of cereal of stopping by the drive-thru.