Preheat oven to 350 degrees F. Generously butter 15x10x1-inch baking pan. In small bowl combine and mix filling ingredients. Spread filling evenly over 1 slice of bread, top with another slice, spread filling evenly over second slice, then top with third slice. Continue with remaining bread, using 3 slices per person.
Combine milk and next 4 ingredients, beating until well blended. Pour into large bowl. Dip bread in milk mixture, turning to coat both sides evenly. Place on baking sheet and bake for 8 to 10 minutes, then turn slices over and continue baking an additional 8 to 10 minutes or until golden brown.
Dust lightly with additional confectioners’ sugar, if desired. Serve with warm maple syrup. Variations: Red raspberry or strawberry preserves can be substituted for fresh bananas in filling, or you can use fresh strawberries.