Sausage, egg, scallion, and cheese are layered over garlicky "Texas toast" in the heartiest take on savory bread pudding we've ever come across — just the sight of it could stir a cowboy-size appetite. This stick-to-your-ribs breakfast for a crowd can be completely assembled the night before.
Cooks' note:
Dish can be assembled (but not baked) 12 hours ahead and chilled, tightly covered with buttered foil. Bake as directed above.