2.Mix the ground beef, breadcrumbs, egg, garlic, oregano, salt, pepper, and Parmesan together, then roll into meatballs - salt is what keeps ground meat from tasting bland once baked.
3.Arrange on a baking sheet and bake for 20 minutes until browned.
4.Simmer the baked meatballs in marinara sauce for 10 minutes before serving.