To make this Cajun Red Beans and Rice gluten free, confirm that the andouille sausage, bacon, chicken broth, hot sauce, and red wine vinegar are certified gluten free or free from hidden gluten-containing additives. Some packaged meats and broths may contain gluten-based fillers or flavorings, so label-checking is especially important. Serve with plain cooked rice, which is naturally gluten free.