Preheat the oven to 350° F. Cut the squash in half lengthwise.
Set the squash cut-side down on a baking sheet. Bake squash until tender, 35 to 40 minutes. Set aside to cool.
When cool enough to handle, remove seeds and shred the squash with a fork. Save the squash shells.
Prepare the Cooked Perfect® Meatballs according to the directions on the package.
Mix the meatballs and the desired amount of spaghetti sauce into the bowl with the squash. Place the mixture into the squash shells. Add cheese and oregano.
Bake in oven for 6-8 minutes or until the cheese is melted and the sauce is hot. Serve and enjoy!