Warm meatballs in spaghetti sauce over med heat until warmed through. Place 4-5 meatballs with sauce on a hoagie roll. Put provolone cheese over meatballs and broil until melted.
Remember those meatballs? It's time to put them to use. This is such a great dinner for a busy weeknight. Just pull the meatballs out of the freezer (as many as you need) and defrost in the microwave. My kids loved this dinner. The only thing I didn't do that I will do next time is toast the haogie roll a little under the broiler (just barely) before adding the meat & sauce. The bread was a little soggy...good, but soggy.