To make sure that this recipe is free of gluten you can use tamari sauce or a soy sauce that is certified as gluten-free instead of regular soy sauce. If necessary you can also opt for a hot sauce that is gluten-free or simply leave it out altogether. With these swaps you can enjoy the taste of Garlic Butter Steak and Potatoes Skillet while keeping it completely gluten-free perfect, for those who have sensitivities to gluten or follow a restricted diet.