Easy and Healthy Grilled Swordfish Steaks Recipe is my go to plan for those sticky summer nights when I want something that feels a little special, but I also do not want to babysit the stove. Maybe you know the feeling: you are hungry, it is too hot to cook inside, and everyone keeps wandering into the kitchen asking what is for dinner. This is when I grab swordfish because it is fast, filling, and honestly hard to mess up if you follow a few simple cues. The outside gets nicely browned, the inside stays juicy, and dinner suddenly feels like a mini vacation. Let me walk you through exactly how I do it at home, in normal people language.
Table of Contents
How to Buy Swordfish
If you have ever stared at the seafood case and thought, “I have no idea what I am looking for,” you are not alone. I used to buy whatever was on sale and hope for the best. With swordfish, a couple of little checks make a big difference.
Here is what I look for when buying swordfish steaks:
- Color: You want flesh that looks pale pink to light beige, not dull gray or super brown around the edges.
- Smell: It should smell clean like the ocean, not fishy. If it smells strong through the plastic, pass.
- Texture: The surface should look moist, not slimy, and the steak should feel firm.
- Thickness: Aim for steaks about 1 inch to 1.5 inches thick so they do not dry out on the grill.
I also recommend asking the fish counter person when it came in. Most are happy to tell you. If you are shopping frozen, look for solid pieces with no big ice crystals. Those crystals can mean it thawed and refroze, which can mess with texture.
One more quick note, because it comes up a lot: swordfish is a bigger fish, so it is not something I personally eat every single week. I treat it like a “once in a while” dinner, and I feel good about that balance.
How to Grill Swordfish
Grilling swordfish is one of those things that sounds fancy, but the actual process is super simple. The biggest goal is to keep it juicy while still getting a nice sear. Also, this is not the time for a dirty grill grate. If the grill is gunky, fish can stick and tear, and then you are left with sad little chunks. Been there.
My easy setup and what you will need
I keep it basic. Here is my usual lineup:
- Swordfish steaks
- Olive oil
- Lemon
- Garlic
- Salt and black pepper
- Dried oregano or parsley
For the grill, medium high heat is the sweet spot. If your grill has hot spots, that is fine. Just know where they are so you can move the fish around if one area is getting too aggressive.
My simple method:
First, preheat the grill and clean the grates. Then oil the grates lightly. I usually fold a paper towel, dip it in oil, and use tongs to swipe the grill quickly. Next, pat the fish dry. This helps it brown instead of steam.
Place the steaks on the grill and do not touch them for a few minutes. That “do not poke it” moment matters. When fish releases easily, it is ready to flip. If it is sticking, give it another minute.
Flip once, finish cooking, then pull it off and let it rest for a couple of minutes. I like squeezing fresh lemon over the top right at the end. This is the kind of dinner that makes people wander outside and ask what smells so good.
“I tried your grilled swordfish steaks last weekend and my husband said it tasted like something we would order on vacation. The lemon and garlic combo was perfect, and it did not dry out at all.”
How do you know when swordfish is done?
This is the part that makes people nervous, so let us make it easy. Swordfish is not flaky like delicate white fish. It is meatier, so the texture changes in a different way when it cooks.
Here is what I watch for:
Color change: The center will go from translucent to opaque. A tiny hint of pink in the very middle is okay, especially if you are about to let it rest.
Texture: When you press it gently with a fork or finger, it should feel firm but still have a little spring. If it feels hard and tight, it is probably overdone.
Internal temp: If you like using a thermometer, you are looking for about 130 to 135 F for a juicy result, then it will rise a bit while resting. If you prefer it more done, you can go a touch higher, but swordfish dries out fast when pushed too far.
The main thing: do not grill it until it is bone dry just because you are afraid. With grilled swordfish steaks, slightly under is easier to fix than over. If you pull it and it needs another minute, you can always pop it back on the grill.
The marinade: How long should you marinate swordfish?
Marinating swordfish is a quick win, but you do not need to soak it all day. I like a marinade that adds flavor and helps the outside brown, without turning the fish mushy.
My go to marinade and timing
This is the simple mix I use most often:
Olive oil, lemon juice, minced garlic, salt, pepper, and oregano. Sometimes I add a pinch of red pepper flakes if I want a little kick.
How long should you marinate swordfish? I find 20 to 30 minutes is perfect. If you are in a rush, even 10 minutes helps. I try not to go beyond 45 minutes to 1 hour when there is lemon juice involved, because the acid can start changing the texture. It is not dangerous, it just can make the outside a bit weird and “cooked” feeling before it even hits the grill.
My real life routine is: mix marinade in a bowl, coat the steaks, set them in the fridge while I preheat the grill and toss a quick salad. Then I pull the fish out while the grill finishes heating up so it is not ice cold when it cooks.
And yes, you can absolutely make grilled swordfish steaks without a marinade. Just brush with oil, salt, pepper, and finish with lemon and herbs. Still delicious.
What to Serve along with this Grilled Swordfish
This is where you can make dinner feel fun without doing a ton of extra work. Swordfish has a rich, hearty vibe, so I like sides that are bright, crunchy, or a little tangy.
Easy summer sides I actually make
Here are my favorite pairings:
- Grilled corn with butter, salt, and lime
- Tomato and cucumber salad with red onion and a splash of vinegar
- Rice or couscous with chopped herbs and lemon zest
- Roasted potatoes or even crispy air fryer potatoes if you do not want to heat the oven too long
- Simple greens like arugula with olive oil and lemon
If I am serving friends, I will also put out a quick sauce. Nothing complicated. A spoonful of plain Greek yogurt mixed with lemon, garlic, and chopped dill is amazing with fish. Or I do a fast salsa with diced tomatoes, capers, olive oil, and parsley. The whole table instantly looks more “hosted,” even if you are in flip flops.
And if you have leftovers, lucky you. Cold grilled swordfish steaks are great chopped into a salad the next day with a lemony dressing. It feels like a restaurant lunch, but you are eating it in your own kitchen.
Common Questions
Can I use a grill pan instead of an outdoor grill?
Yes. Get the pan hot, lightly oil it, and cook the same way. Just make sure your kitchen fan is on because it can get smoky.
Do I need to remove skin from swordfish steaks?
Most swordfish steaks do not have skin on them. If yours does, you can cook it with the skin and remove it after, but it is usually already trimmed.
Why did my swordfish turn out dry?
Most likely it cooked a little too long or the steaks were too thin. Next time, choose thicker pieces and pull them off the grill a bit earlier, then let them rest.
Can I prep the marinade ahead of time?
Definitely. Mix it up to a day ahead and keep it in the fridge. I would still marinate the fish for only about 20 to 30 minutes for the best texture.
What is the best way to keep fish from sticking to the grill?
Clean grates, hot grill, dry fish surface, and a little oil on the grates. Also, do not try to flip too early. Let it release naturally.
A simple summer dinner you will want to repeat
If you have been craving a dinner that feels light but still satisfying, grilled swordfish steaks are such a solid move. Buy fresh fish, keep the marinade simple, and watch the doneness cues so it stays juicy. Pair it with a crunchy salad or grilled corn, and you have that relaxed summer night energy without spending all evening cooking. I hope you try this soon and make it your own, because once you get the hang of it, you will want to put grilled swordfish steaks on repeat. 