A pan con bistec is a Cuban-style steak sandwich found in restaurants and cafeterias all over my little corner of the world. This is not just any steak sandwich though. The star of this sandwich is the thinly sliced and well marinated steak. topped with sauteed onions, shredded lettuce, thin sliced tomatoes and potato sticks.
Marinate the steaks overnight when possible, but if you’re putting this together last minute, just give them 30 minutes in the marinade and they’ll still be delicious.
For any leftover steaks they can be refrigerated for up to 24 hours in an airtight container. Any longer and the meat may dry out because it’s so thin.
Build the sandwich when you’re ready to eat. This will avoid the bread from getting soggy.