This make-ahead breakfast casserole has been a Christmas morning tradition for the last several years at our house. Another tradition I don't want to see go is the boozy cappuccino with Bailey's and Kahlúa that Jim and I treat ourselves to.
I have made this savory bread pudding casserole for overnight guests, baby showers, office breakfast parties, and family brunches - it never disappoints.
The beauty of this breakfast bread pudding is that it can be assembled a full 24 hours ahead of time, stored in the fridge, and then placed in the oven for an hour, straight from the refrigerator. This means you get to enjoy the magic of Christmas morning AND serve a warm, homemade breakfast.
The recipe starts with a bag of onion rolls fro