Looking to add a touch to our delicious Easy Baked Meatballs? Scour the world of breadcrumbs constructed from gluten-free grains, like rice or corn. Make sure to find a trusted brand of Italian breadcrumbs for that authentic taste. Also, check that the marinara sauce you use is gluten-free. The other ingredients, such, as ground beef, pork and seasonings are naturally gluten-free.