To make this dish gluten-free, substitute farro with a naturally gluten-free grain such as quinoa, brown rice, or buckwheat. Each will offer a slightly different texture: quinoa will be lighter and fluffier, while brown rice and buckwheat add a heartier consistency. Ensure the vegetable broth used is certified gluten-free, as some commercial varieties may contain wheat-based additives. All other ingredients in this recipe are naturally gluten-free.