To make these Taco Stuffed Tomatoes gluten free, verify that the taco seasoning is certified gluten free. Some seasoning packets may contain wheat-based thickeners or gluten-containing additives.
Also check the shredded cheese, canned corn, salsa, sour cream, and any packaged toppings for gluten-free labeling. Fresh tomatoes, plain ground beef, onion, baby spinach, avocado, and fresh herbs are naturally gluten free. For the safest option, use a homemade gluten-free taco seasoning blend made with chili powder, cumin, paprika, garlic powder, onion powder, oregano, salt, and pepper.