This was a quickie, convenience-food dinner. I simply heated Fresh Direct meatballs (which are pretty good) in tomato sauce, then hollowed out a baguette that I had halved horizontally and filled it with the meatballs. Topped it with Parmesan and provolone, then put it under the broiler to melt the cheese. The meatballs overwhelmed the bread, though, so next time I think I'd halve the meatballs before assembling the sandwich.