Note 1: Not all store-bought Cajun seasonings are the same -- they can vary quite a bit from brand to brand. Spiciness and saltiness can vary significantly, so be sure to add the seasoning slowly and taste frequently. I find Cajun seasoning is generally salty enough that these melts need no additional salt, but feel free to add a bit if desired or if your particular seasoning is not salted. I use McCormick® Cajun Seasoning. If you prefer a less-salty dish, look for a low-sodium Cajun seasoning blend.