My wife was very sick for a while way back when. Being a good husband I tried to cheer her up with food. One night I came up with this little number and to this day I think it helped maker her better. It certainly made her smile.
Cut the spaghetti squash in half across it not lengthwise. Cut off the end of each half so it will have a base to sit on. Be careful not to cut so much off that the sauce will leak out the bottom.
Put 1 inch of water in a deep pan, like a roasting pan and place each half of the squash big cut side down into the water. Bake at 350 for 30 minutes or until the squash is tender inside. Remove from oven.
While the squash is cooking heat spaghetti sauce and doctor it up the way you like best. Add cooked meatballs to the sauce and simmer till the squash is done. Empty the pan of water and place each squash half small cut side down. Fill with spaghetti sauce and add 3 meatballs each. Top with at least one piece of provolone cheese. More can't hurt.
Return to oven at 350 degrees and bake until cheese is just turning brown. About 10 minutes.
To serve give each person a whole half squash and a fork and big spoon and a hunk of garlic toast. This is as much fun to eat as it is to look at. If you are on a low carb diet this will satisfy your craving for pasta too.