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This smoked mahi mahi is light, flaky, and so easy to make. The fillets soak up gentle wood smoke while resting on a bed of fresh lemon slices, and a simple lemon pepper seasoning is all they need. It’s a healthy, restaurant-quality dinner that comes together with barely any effort.
Mahi mahi is a firm, mild white fish, which makes it perfect for the smoker — it holds together beautifully and doesn’t fall apart the way flakier fish can. This step-by-step smoked mahi mahi recipe shows you how to keep the fish moist and tender while it picks up just the right amount of smoky flavor. The lemon slices underneath keep everything juicy and add a bright, fresh finish.
I smoke mine on a Traeger, but any pellet smoker, electric smoker, or charcoal grill set up for indirect heat will work. The whole cook takes about an hour, and the prep is just a few minutes of seasoning. It’s one of my favorite easy seafood dinners for a warm evening, and it feels fancy without any of the fuss.
Why You Will Love This Recipe
Smoked mahi mahi is a light, healthy dinner that still feels special. The fish is lean and high in protein, the seasoning is simple, and the smoke does all the heavy lifting flavor-wise. There’s no breading, no frying, and no fishy smell taking over your kitchen.
This recipe is also wonderfully low-effort. You season the fillets, lay them on lemon slices in a foil pan, and let the smoker work. The foil pan means cleanup is basically nothing — no scrubbing grates, no fish sticking. If you love smoked fish but want it ready in the morning for an easy breakfast, the Trader Joe’s Everything But the Bagel smoked salmon is a great grab-and-go option for the days you don’t feel like cooking.
Mahi mahi has a mild, slightly sweet flavor that even picky eaters tend to enjoy. My family happily eats this, and I love that it’s a wholesome dinner I can feel good about serving.
Serving Ideas
Smoked mahi mahi is light, so it pairs well with both fresh and cozy sides. A few of my favorites:
- A crisp green salad with a lemon vinaigrette.
- Buttery rice pilaf or herbed couscous.
- Roasted asparagus, green beans, or zucchini.
- Warm, creamy corn for a comforting contrast.
- Flaked into soft tacos with cabbage slaw and a squeeze of lime.
- Served over a grain bowl with avocado and cherry tomatoes.
- A side of crusty bread to soak up the lemony pan juices.
Tips for the Best Smoked Mahi Mahi
Pat the fillets really dry. Removing surface moisture helps the seasoning stick and lets the smoke flavor settle in instead of steaming the fish.
Don’t skip the lemon slices. Laying the fillets on a bed of lemon keeps them from sticking, adds moisture from below, and infuses the fish with bright citrus flavor as it cooks.
Smoke low at 225°F. Mahi mahi is lean and cooks fast. A low, steady temperature gives it time to take on smoke without drying out.
Use a mild wood. Alder, apple, or cherry are perfect for fish. Skip strong woods like mesquite or hickory, which can easily overpower a delicate fillet.
Watch the internal temperature. Pull the fish at 137 to 140°F — it will climb a few more degrees as it rests. Overcooked mahi mahi turns dry and tough, so a thermometer really helps here.
Frequently Asked Questions
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How long does it take to smoke mahi mahi?
About 1 to 1.5 hours at 225°F, depending on the thickness of your fillets. Thinner pieces cook faster, so always check the internal temperature rather than relying on the clock.
What temperature is smoked mahi mahi done at?
Pull the fish when it reaches 137 to 140°F internal at the thickest part. It will rise a few degrees while resting. The fish should flake easily with a fork when fully cooked.
Do I have to use a Traeger?
Not at all. I use a Traeger, but any pellet smoker, electric smoker, or a charcoal grill set up for indirect heat at 225°F will work. The method stays exactly the same.
Can I use frozen mahi mahi?
Yes. Thaw the fillets fully in the fridge overnight, then pat them very dry before seasoning. Frozen mahi mahi from the grocery store or warehouse club works great for this recipe.
What other fish can I smoke this way?
Any firm white fish works beautifully. If you love this, try my smoked halibut — it uses a similar low-and-slow method with a sweet chili glaze.
Why is my smoked fish dry?
Almost always overcooking. Mahi mahi is very lean, so it goes from perfect to dry quickly. Use a thermometer and pull it right at 137 to 140°F for moist, tender results.
Storage and Reheating
Store leftover smoked mahi mahi in an airtight container in the fridge for up to 3 days.
Freeze cooled fillets in a freezer-safe bag for up to 2 months. Thaw overnight in the fridge before using.
Reheat gently in a 275°F oven, covered, for about 10 minutes — low and slow keeps it from drying out. Leftovers are also delicious flaked cold into salads, tacos, or grain bowls. For a quicker weeknight fish dinner another night, my air fryer frozen tilapia on The Top Meal is ready in under 20 minutes.
You May Also Like
- Smoked tilapia — another easy smoked white fish with simple spices and fresh lemon, done in about 2 hours.
- Mexican shrimp and crab ceviche — a fresh, no-cook seafood dish loaded with tomato, avocado, and lime.
- Perfect smoked brisket — the ultimate low-and-slow project for your next big smoker day.
- Easy creamed corn recipe — a cozy, cheesy side dish that pairs perfectly with smoked fish.
- Smoked cajun chicken quarters — bold, spicy chicken quarters for when you want something heartier.
- Easy smoked whole chicken — juicy, tender whole chicken with crispy skin, great for feeding a crowd.
Hope you will love this smoked mahi mahi recipe as much as my family does. Rate the recipe if you made it and leave a comment below if you have any questions or suggestions!
Smoked Mahi Mahi
Ingredients
- 4 mahi mahi fillets about 1½ lbs total, 6 oz each
- 2 tablespoons olive oil
- 2 tablespoons lemon pepper seasoning or garlic lemon pepper blend
- ½ teaspoon kosher salt or to taste
- 2 lemons thinly sliced
Instructions
- Pat the mahi mahi fillets very dry with paper towels. Drizzle or brush with olive oil to coat all sides.
- Season the fillets generously on all sides with the lemon pepper seasoning and a little kosher salt.
- Line a foil pan with a single layer of lemon slices.
- Place the seasoned fillets on top of the lemon slices, spaced slightly apart.
- Preheat the smoker to 225°F. Use a mild wood like alder, apple, or cherry.
- Place the pan in the smoker and smoke for 1 to 1.5 hours, until the internal temperature reaches 137–140°F and the fish flakes easily with a fork.
- Rest for 2–3 minutes, then serve warm with fresh lemon.