This recipe is naturally gluten free as long as all packaged ingredients are certified gluten free. Be sure to check the labels on the canned tomatoes, tomato paste, black beans, shredded cheese, and seasonings for hidden gluten or cross-contact warnings. Most plain sweet potatoes, ground turkey, and fresh garnishes are naturally gluten free, but packaged spice blends and canned goods can vary by brand. No flour or gluten-containing thickeners are required for this recipe, so no major substitutions are needed.