Preheat oven to 400 F.

Mix ground beef, eggs, ketchup, matzoh meal, salt and pepper, garlic powder and parsley.

Bring tomato sauce to a boil in a large pot.  Form meatballs and add to sauce.  Cook on medium flame, uncovered for 30 minutes.

While the meatballs are cooking, put spaghetti squash in the oven for 1 hour, or until soft.  Remove squash from the oven and shred the meaty part into a bowl.

Serve meatballs with the spaghetti squash.