There's nothing like a grilled-cheese-and-bacon sandwich. When you add slices of crisp apple and fresh-tasting sprouts to balance the richness, why, you have yourself a new instant classic.
Place 1 slice of cheese on 1 slice of bread. Layer bacon, apple, sprouts, and remaining slices of cheese and bread on top.
Spread half the butter on top of sandwich. Heat a medium skillet over medium heat, and place sandwich, butter side down, in skillet.
Spread remaining butter on top of sandwich. Cook until cheese is melted and bread is golden brown, flipping once, about 12 minutes.