This Chicken and Cabbage Stir Fry is naturally gluten free as written, provided that all individual ingredients, especially the shredded chicken and garam masala, are free from hidden gluten-containing additives or seasonings. If using leftover or store-bought cooked chicken, verify that it does not contain gluten-based marinades or fillers. Always check spice blends and packaged ingredients if cooking for someone with celiac disease or a strict gluten-free diet.