Make croutons and dressing first. For croutons: add ingredients to a bowl, mix well, add to baking sheet lined with aluminum foil, bake for 15 minutes at 375F. For dressing: add everything to a bowl except for mayo and cheese, whisk, add mayo and cheese, whisk again until smooth.
Season salmon, rub spices in with a very small drizzle of olive oil. Heat a grated cast iron to medium heat. Brush oil on once hot, then add salmon. Sear, undisturbed for 3-5 minutes, flip, sear for 3-5 minute. Salmon will flake easily when cooked through. Let rest for 5 minutes on a plate.
Build your salad and dig in!