To make this Hearty Shipwreck Stew with Ground Beef and Vegetables gluten-free, use certified gluten-free condensed tomato soup, as some canned soups may contain wheat-based thickeners or additives. Confirm that the kidney beans are gluten-free and free from cross-contamination. Ground beef, onions, and potatoes are naturally gluten-free when prepared without gluten-containing seasonings or additives.