The sandwiches are already fully baked before you even put them in the oven because the rolls and the lunch meat are already baked. You're essentially just baking them in the sauce/glaze. If there is a little glaze left around the pan, that's okay. You don't want to keep baking for a long period of time as the bread will just get too hard. These sandwiches are messy to eat and that's just what makes them so great. You'll definitely need a napkin, but they are so worth it.