Combine meat, bread crumbs, parsley, egg, milk, tomato paste, Parmesan cheese, granulated garlic, minced onions, salt & pepper in large bowl.
Work with your hands mixing ingredients until combined
Roll meatballs by hand & place on a plate
In a large skillet heat oil over medium heat
Once oil is hot, gently place meatballs in skillet & cook about 2 minutes before rolling to continue cooking another side.
Cook until most of the meatball surface has been cooked -if you are working in batches transfer cooked meatballs to a plate lined with paper towels.
Once all the meatballs are browned - place back in skillet & add your marinara sauce
Cover & simmer on low for about 1 hour - stiring occasionally
Serve with bacon & additional Parmesan cheese on your rolls