how long to cook salmon on cast iron cooking grid
1 Season the salmon with seafood seasoning. 2  Heat the Cast Iron Skillet (we used the Cast Iron Panini Press) on a grill with medium-high heat. 3  Place the salmon skin side up and cook until golden and a little crispy at the edges, 3-4 minutes.4  Flip and cook for 2 minutes more for a pink center, or 4 minutes for opaque fish. Heat the Cast Iron Skillet (we used the Cast Iron Panini Press) on a grill with medium-high heat. 2  Place the salmon skin side up and cook until golden and a little crispy at the edges, 3-4 minutes.