To make this Cowboy Stew gluten-free. Simply swap the all-purpose flour. With a gluten-free flour blend or cornstarch. Both options work well as a thickening agent. Giving the stew its rich, hearty consistency. Without compromising on flavor. Additionally, ensure that all canned ingredients. Such as the beans and diced tomatoes. Are labeled gluten-free. As some processed foods can contain hidden gluten. With these simple adjustments. You can enjoy this delicious stew. While adhering to a gluten-free diet.