Butter a 9x13 baking dish and line with half the bread. On each slice of bread place one slice of bacon and 1/8 of the cheese. Top with the remaining bread. Mix the remaining ingredients except butter, pour over bread. Cover the dish with foil and refrigerate overnight. One hour before baking, remove the dish from the refrigerator and uncover it. Melt butter and pour over the bread. Bake the casserole for one hour at 350ºF. 8-10 servings.