1. Preheat oven to 350 °F. Grease a 9×13-inch casserole dish. 2. In the bottom of the casserole dish, combine the melted butter, brown sugar and cinnamon. 3. Add bread pieces to the dish and use a large mixing spoon to toss the bread with the butter, sugar and cinnamon. 4. In a separate bowl, beat the eggs and milk together. Pour this mixture over the bread. 5. Bake, uncovered, for 35 minutes or until eggs are set and internal temperature is 145 °F. 6. Serve with syrup or powdered sugar, as desired.