To ensure this Christmas Salad is gluten-free and just as delightful, pay close attention to a few key details. Firstly, when selecting Dijon mustard, read the label carefully – not all mustards are created equal, and some may contain gluten as an additive. Opt for a certified gluten-free brand to be on the safe side. Additionally, cross-contamination can be a concern, especially with ingredients like nuts. Choose pecans that are labeled gluten-free to avoid any traces of gluten from processing facilities.