Preheat oven to 425 and spray a baking sheet with cooking spray.
In a large bowl, combine the ground beef, Italian sausage, breadcrumbs, parmesan, parsley, garlic, eggs, milk, onion powder, and plenty of salt & pepper.
Roll into 1 1/2-2 inch balls and place on greased baking sheet. Bake for 20 minutes or until done in the middle.
While meatballs are cooking in the oven. Cook spaghetti noodles to the directions listed on the package.
In a sauce pan heat Prego pasta sauce to pour on top of the cook meatballs.
Once the noodles and meatballs are done simply add noddles to your plate, top with a couple of meatball and pour over your pasta sauce.