Of course, your yield will depend on the appetites you're cooking for. In certain East Coast states, a grinder sandwich is a sub sandwich (or hoagie or hero) that has been heated. That's it. The only ...
A sub by any other name - hero, hoagie, grinder - is just as delicious. What makes a sub from Subway different from one from Jimmy John's? And what makes those different from a Jersey Mike's sub?