Can I make this sandwich ahead of time?
Assemble the sandwich up to 2 hours before broiling and keep it covered in the refrigerator. Broil just before serving to keep the cheese melted and the roll crispy.
How do I know when the sandwich is done broiling?
The mozzarella should be melted and lightly golden, and the edges of the roll should be toasted. Watch carefully—broilers vary; check after 3–4 minutes.
What type of salami works best?
Use a good-quality Italian salami like soppressata or genoa for the best flavor. Avoid very thin deli salami, which can crisp up too much under the broiler.
Can I use jarred pesto instead of homemade?
Yes, jarred pesto works well and saves time. Use the same amount (1/4 cup) and spread evenly on the roll before adding other toppings.
How do I prevent the roll from getting soggy?
Spread pesto directly on the roll as a moisture barrier before adding tomato slices. Broil immediately after assembly to keep the bread dry and crispy.