Cajun Blackened Salmon and Creamy Gulf Shrimp Skillet in One Pan

A crusty, spice-blackened salmon fillet and sweet Gulf shrimp share one hot cast-iron skillet. Butter, garlic and grated hard cheese turn into a rich orange cream that clings to every flake of fish, making this a dinner that feels special yet comes together in one pan in under an hour.

Cajun blackened salmon with creamy Gulf shrimp is a skillet dinner built on contrast. The fish gets a dark, peppery crust from the spice coating, while the shrimp poach gently in foaming butter and garlic.

Diced bell peppers and celery add sweetness and crunch, and a generous mound of finely grated hard cheese melts into a creamy base that ties the whole dish together.

Nothing here needs a second pot, so the flavors stay concentrated in the pan. Serve it straight from the skillet with lemon wedges, chopped parsley and green onion scattered over the top. The method is simple, but the timing matters, so this page walks through each stage and what to look for at every checkpoint.

Ingredients

Why this recipe works

Searing the salmon skin side down in hot butter renders the skin and builds a dark crust while the flesh stays moist inside. Because the fish is in the pan first, the fat that carries the Cajun spices is already sizzling, which toasts the seasoning rather than burning it. Starting the fish first gives it the most time to set its crust before the shrimp are ready.

The shrimp cook quickly and need only a few minutes in the butter to turn pink and curl. Adding the cheese directly over the fish and sauce lets it melt into the hot butter and thicken the pan juices into a creamy coating. Basting with a spoon spreads that sauce evenly, so every component finishes together in a single pan.

Notes and substitutions

Choose thick salmon fillets, about one inch or more at the center, so the outside can blacken without overcooking the middle. Skin-on fillets are easiest to sear skin side down because the skin protects the flesh.

Fresh raw shrimp give the sweetest flavor, but thawed frozen shrimp work well if they are patted completely dry. Buy a block of hard grating cheese and grate it yourself; pre-shredded cheese contains anti-caking agents that keep it from melting smoothly into the sauce.

A 12-inch cast-iron skillet holds both fillets and the shrimp in a single layer and retains heat for a strong sear. You need a fine-hole box grater for the fluffy cheese texture, a sharp chef's knife for dicing the peppers and celery, tongs for turning the fish and an instant-read thermometer for checking doneness.

Any heavy oven-safe skillet can stand in for cast iron. Substitutions include Parmesan or Pecorino Romano for the cheese, and a homemade spice mix of paprika, garlic powder, onion powder, cayenne, black pepper and thyme for the blackening coating.

• hard grating cheese: finely grated Parmesan cheese or Pecorino Romano
• Cajun spice blend: homemade mix of paprika, garlic powder, onion powder, cayenne, black pepper and dried thyme
• raw shrimp: frozen raw shrimp, thawed and patted dry

Equipment

• 12-inch cast-iron skillet
• fine-hole box grater
• cutting board
• chef's knife
• tongs
• wooden spoon
• instant-read thermometer