To make this Italian Chicken Cacciatore gluten-free, ensure that your wine and canned tomatoes are certified gluten-free, as some brands may contain trace additives or preservatives with gluten. Use naturally gluten-free sides such as creamy polenta, rice, or mashed potatoes instead of traditional pasta or bread. The dish itself contains no flour or thickening agents, making it an excellent gluten-free main course option with minimal adjustments needed.