Grilled Swordfish Recipe (Outdoor Grill)

Written By: Captain Kody Michael

Grilled swordfish is a perfect choice for outdoor cooking thanks to its firm, steak-like texture and mild, clean flavor. This simple grilled swordfish recipe delivers a lightly charred exterior and a juicy interior, with an optional foil step you can use to lock in extra moisture if needed. Tips for cooking large swordfish steaks are at the bottom.

Ingredients

• 2 swordfish steaks (about 1–1½ inches thick)

• 3 tablespoons olive oil

• 1 tablespoon fresh lemon juice

• 2 cloves garlic, minced

• 1 teaspoon sea salt

• ½ teaspoon black pepper

• ½ teaspoon smoked paprika (optional)

• 1 teaspoon fresh herbs (thyme, oregano, or rosemary, finely chopped)

• Lemon wedges, for serving

Optional for foil finish:

• 1–2 tablespoons butter or olive oil

• Lemon slices

• Fresh herbs

Grilling Instructions

1. Preheat the grill
   Preheat your outdoor grill to medium-high heat (about 400–450°F). Lightly oil the grates to prevent sticking.

2. Prepare the swordfish
   Pat the swordfish steaks dry with paper towels. In a small bowl, mix olive oil, lemon juice, garlic, salt, pepper, smoked paprika, and herbs.

3. Season the fish
   Brush both sides of the swordfish with the oil mixture. Let rest at room temperature for 10–15 minutes.

4. Grill directly (main cook)
   Place the swordfish steaks directly on the grill grates. Grill for 4–5 minutes per side, flipping once, until grill marks form and the fish is mostly cooked through.

5. Optional foil step (for extra moisture)
   If desired, transfer the swordfish to a sheet of heavy-duty foil. Add a small pat of butter or drizzle of olive oil, along with lemon slices and herbs. Loosely seal the foil and place the packet over indirect heat for 3–5 minutes, until just cooked through.

6. Rest and serve
   Remove from the grill and let rest for 2 minutes. Serve with fresh lemon wedges.

Swordfish Cooking Tips & Flavor Suggestions

• Avoid overcooking
  Swordfish should be just opaque in the center and still moist. Overcooking will make it dry.

• Use high heat for the sear
  Direct heat creates a flavorful crust that enhances the fish’s natural richness.

• Foil is optional, not required
  The foil step is helpful for thicker steaks or when cooking on a very hot grill, but not necessary for thinner cuts.

• Keep flavors clean
  Swordfish shines with simple seasonings like citrus, herbs, olive oil, and light smoke.

• Pair wisely
  Serve with grilled vegetables, fresh salads, rice, or light sauces such as lemon butter or chimichurri.

Cooking Extra-Thick or Large Swordfish Steaks

Swordfish steaks can be much thicker and wider than most fish cuts, which means they need a slightly different approach to cook evenly without drying out.

• For steaks over 1½ inches thick:
  Sear the swordfish over direct medium-high heat for 2–3 minutes per side to build flavor, then move it to indirect heat or use the optional foil step to finish cooking gently.

• Use foil as a finishing tool, not a crutch:
  Wrapping the steak loosely in foil after searing helps heat penetrate the center without burning the outside. Add olive oil or butter, herbs, and lemon slices to keep it moist.

• Watch the center, not the clock:
  Large swordfish steaks should be just opaque in the center and still slightly springy. Overcooking even by a few minutes can dry them out.

• Lower heat if needed:
  If the outside is browning too quickly, reduce grill heat or shift the fish to a cooler zone rather than flipping repeatedly.

• Let it rest:
  Resting large swordfish steaks for 2–3 minutes allows juices to redistribute, improving texture and flavor.

Conclusion

Grilling swordfish outdoors is an easy and rewarding way to enjoy this hearty fish. By searing it directly on the grill and finishing with an optional foil step, you can control both flavor and moisture while letting the natural taste of swordfish shine. Whether you keep it simple or add the foil finish, this recipe delivers reliable, restaurant-quality results every time.

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