Grilled Mahi-Mahi with Mango Avocado Salsa

Grilled Mahi-Mahi with Mango Avocado Salsa

This grilled mahi-mahi recipe pairs firm, mild fish with a fresh mango avocado salsa, lime, and cilantro. It is a fast high-protein dinner with enough bright acidity to keep the plate feeling light, whether you cook the fish outdoors or on a grill pan.

Why This Recipe Works

Mahi-mahi is firm enough to grill without falling apart, but it cooks quickly because the fillets are relatively lean. Brushing the fish with a small amount of oil protects the surface and helps it brown, while the fresh salsa adds moisture, sweetness, acidity, and creamy avocado without needing a heavy sauce.

Ingredient Notes

Choose fillets of similar thickness so they finish at the same time. Fresh or responsibly sourced frozen mahi-mahi both work; thaw frozen fillets fully and pat them dry before seasoning.

Use a ripe but firm mango and avocado. Very soft fruit will break down when mixed, while fruit with a little structure gives the salsa a better contrast with the flaky fish. Sriracha is optional and can be left out for a milder plate.

How to Make Grilled Mahi-Mahi

Pat the fish dry, brush it with the measured oil, and season with salt and pepper. A short 10-minute rest is enough for the seasoning to cling; because there is no acidic marinade, the fish does not need a longer marination time.

Make the salsa before heating the grill. Mix the mango with the lime, cilantro, seasoning, and optional Sriracha first, then fold in the avocado at the end. This keeps the avocado pieces intact and prevents them from becoming mashed.

Grill the mahi-mahi over medium-high heat for about 4 to 5 minutes per side. The centre should be opaque and flake with gentle pressure, and the thickest part should reach 63°C. Rest the fish briefly before topping it with salsa.

Serving Ideas

Serve the fish with brown rice, quinoa, grilled corn, or warm whole-wheat tortillas. For a lighter plate, add steamed green beans or a simple cabbage slaw. Spoon the salsa over the fish just before eating so the fruit stays fresh.

Substitutions

Cod, haddock, halibut, or salmon can replace the mahi-mahi. Adjust the cooking time for thicker or thinner fillets and rely on the internal temperature and flaking cue rather than the clock alone. Parsley can replace cilantro if needed, although the flavour will be less vibrant.

Storage and Make-Ahead Notes

Store cooked fish in the refrigerator for up to 2 days. Keep the salsa separate and use it within 1 day for the best avocado texture. Reheat the fish gently in a covered pan or microwave until warmed through; avoid high heat, which can dry it out. This recipe is not ideal for freezing once assembled because the avocado and mango salsa become watery after thawing.

Frequently Asked Questions

Can I cook mahi-mahi in a grill pan?

Yes. Heat the grill pan until hot, lightly oil it, and cook the fish without moving it until it releases easily. Cook in batches if necessary so the pan stays hot.

How do I stop mahi-mahi from drying out?

Use fillets of even thickness, avoid cooking beyond 63°C, and rest the fish for only a few minutes before serving. A small amount of oil helps protect the surface, but overcooking is the main cause of dryness.

Can I make the mango avocado salsa ahead?

You can dice the mango, chop the cilantro, and mix the lime dressing in advance, but add the avocado shortly before serving. The completed salsa is best used the same day.