Here is suggestion that might help you out if you are in a bind at the last minute.

I make spaghetti sauce and put it in the freezer in quart containers.  That way if I have company I can pull out one or more depending on how much sauce I need.  I purchase a 5 lb. sack of meatballs from the store and keep them in the freezer and also make sure I have plenty of spaghetti noodles and canned mushroom soup on hand. 

Once I do this my options are numerous.  I can now have:

spaghetti and meatball dinner

pick up some fresh sub buns and have meat  ball sandwiches

meatballs and mushroom gravy as a main dish for dinner

slice meatballs and have meatball and mushroom soup ( or leave whole)

I am not stating quantities because that depends on the size of your family or number of guests.

Think ahead

Gogi