Combine in a large mixing bowl the lean ground beef, ground pork, Italian bread crumbs, onion flakes, garlic powder, Italian seasoning, kosher salt, black pepper, and beaten egg. Using your hands mix the meat mixture together until thoroughly combined.
Begin to roll by using an OXO small cookie scoop and form mini meatballs. Bake in batches on a lined baking sheet (do not over crowd the baking sheet).
Bake for 12 minutes. Remove from the oven and serve immediately or cool to room temperature and freeze. Repeat the baking steps until all the meat has been cooked