Ingredient substitutions: You can replace chicken with turkey or use a mix of vegetables for a vegetarian version. For a kick, add a splash of hot sauce to the broth mix. Optional variations: Consider adding sautéed onions, mushrooms, or frozen peas for extra flavor and nutrition. Storage: Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat on the stove or in the microwave, adding a splash of chicken broth to loosen the gravy if needed.