Blueberry Cinnamon French Toast Casserole

This is an easy make ahead recipe that would be perfect for a brunch or special occasion breakfast.  You make it the night before so there's no need to wake up at the crack of dawn to start cooking.  I like that.  More sleep = happy Heather. 

Start with some day old french bread.  I happened to have half a loaf that I made before a busy weekend of birthday parties, errands, and various running around.  We weren't home to eat it, otherwise it wouldn't have been there.  French bread doesn't last long around here.