In a shallow glass baking dish, whisk together 1 tablespoon olive oil, lime juice and zest. Add the fish, turning to coat. Cover and refrigerate for at least 1 hour, but no more than 4 hours.
How to Grill Rockfish
Preheat a grill on medium high (about 350ºF) and oil the grates to prevent sticking. *If using a charcoal grill, arrange briquettes for indirect cooking.
Drain marinade from the fish, then discard the marinade. Place fillets on the preheated grill.
Cook fish for 2-3 minutes, or until dark grill marks are visible on the grilled side. Rotate fish 1/4 turn and grill for another 2-3 minutes. Turning the fillets creates a beautiful crosshatch sear
Using a large spatula, carefully flip the fish over. Turn off the heat directly under the fish, but keep all the other burners on medium high (indirect cooking).
Close the grill cover and cook the fish for 5-6 minutes, until it's very moist and flakes easily when tested with a fork.
Pan Searing Rockfish
Preheat a non-stick skillet (or well seasoned cast iron pan) over medium-high heat. When pan is hot, add 2 tablespoons of oil.
Add fish and sear for 4-6 minutes, until bottom of filet.
Reduce heat to medium-low. Using a large spatula, carefully flip the fish over.
Cover pan with the lid and cook until fish is very moist and flakes easily when tested with a fork, about 5-6 minutes.
For Serving
Stack the tortillas on a microwave-safe plate. To prevent them from sticking together, place a paper towel between each.
Cover the plate with a damp paper towel, then microwave tortillas on high for about 30 seconds.
Serve rockfish tacos topped with cucumber slaw, avocado crema, and/or any other taco toppings of your choice.
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Notes
Don’t ever reuse a marinade! After it’s had raw meat or fish in it, marinades should always be thrown out. This one is simple and inexpensive, so make a fresh batch the next time you want grilled rockfish tacos. It isn’t worth risking food poisoning to save a few minutes!Recipe Variations
Spicy chipotle tacos: Add a smoky kick by mixing chipotle sauce, mayonnaise, lime wedges, and a dash of black pepper and cayenne pepper into your avocado crema. Top your tacos with shredded cabbage, red onions, and a drizzle of this spicy sauce for a bold, creamy finish.
Mango Salsa tacos: Brighten things up with a fresh mango salsa made with diced mango, chopped onions, fresh cilantro, and a squeeze of lime. Sprinkle the fish with garlic powder, paprika, and salt before cooking. Serve in warm tortillas or taco bowls with a spoonful of salsa on top.
Sweet and tangy: Before grilling, marinate the fish in a mix of olive oil, honey, and lime juice with a pinch of cumin and black pepper. Serve the tacos with sliced red onions, crisp cabbage, and a dollop of sour cream for contrast. Finish with fresh cilantro and a lime wedge.
Classic Baja-style tacos with a twist: Pan-sear rockfish seasoned with paprika, garlic powder, and salt. Pile onto tortillas with a quick slaw of cabbage, lime juice, and cilantro, then top with your favorite salsa and a swirl of sour cream mixed with a splash of lime for extra zest.
Storing Instructions:Any cooked filets will keep for up to 4 days in the refrigerator. Keep them in an airtight container and assemble the fish tacos after you reheat the rockfish.To regain some of the texture, reheat the fish on a baking sheet in the oven until warmed through.