Before starting on the sauce you will want to cook your spaghetti squash.
See a link to our 6 minute instant pot recipe above
Combine olive oil, onion and garlic into large pan on medium high heat.
Saute until brown
Add ground beef and Italian sausage.
Separate to size that you prefer and cook until brown
Add grated parmesan and spaghetti squash.
Simmer for about 3 minutes.
Add cooked & separated (so it looks like spaghetti) spaghetti squash.
You can also add the mozzarella and stir at this point.
We covered it and broiled the mozzarella in the picture above, but both taste amazing
garnish with chopped basil and enjoy
Also, we love to double this batch and put the extra in tupperware containers.
It's amazing heated up in the microwave the next day!