Baked Mahi Mahi Recipe
This easy baked mahi mahi recipe makes juicy, flavorful fish with a hint of lemon, garlic, and herbs. A healthy weeknight dinner ready in 20 minutes!
Ingredients
- For the Fish
- 4 mahi mahi fillets about 6 oz each — fresh or frozen and thawed.
- Tip: Look for firm pinkish-white fillets with a mild, ocean-fresh scent.
- 1 tablespoon olive oil – helps lock in moisture and adds richness.
- ½ teaspoon salt – enhances flavor and balances acidity.
- ¼ teaspoon black pepper – freshly ground if possible.
- ½ teaspoon garlic powder – adds depth without overpowering.
- ½ teaspoon onion powder – subtle sweetness to complement the lemon.
- ¼ teaspoon paprika – optional for color and a hint of warmth.
- 1 tablespoon fresh lemon juice – brightens everything.
- Optional Garnish
- Fresh parsley or dill chopped.
- Extra lemon wedges for serving.
Instructions
- Preheat Your Oven
- Preheat your oven to 400°F (204°C). This is the ideal temperature for baking fish — hot enough to crisp the edges but gentle enough to keep it moist inside.
- Prep Your Baking Sheet
- Line a baking sheet with foil or parchment paper for easy cleanup. Lightly grease it with olive oil or nonstick spray.
- Pat the Fish Dry
- Using paper towels, gently pat each mahi fillet dry. This helps the seasoning stick and prevents steaming (which can make the fish soggy).
- Season the Fillets
- In a small bowl, mix the salt, pepper, garlic powder, onion powder, and paprika. Brush the fillets with olive oil and fresh lemon juice, then sprinkle the seasoning mix evenly on both sides.
- Don’t be shy — a generous coating of seasoning brings out the fish’s natural sweetness.
- Bake the Fish
- Arrange the fillets on your prepared baking sheet, leaving space between them for even cooking.
- Bake for 12–15 minutes, depending on thickness, until the fish flakes easily with a fork and the internal temperature reaches 137–140°F.
- You’ll know it’s done when the fish turns opaque and starts to flake beautifully.
- Serve and Enjoy
- Squeeze a little extra lemon juice over the top, sprinkle with fresh herbs, and serve immediately.
- I like to add a drizzle of olive oil just before serving — it gives the fish that glossy, just-baked look and enhances the buttery flavor.
Notes
- Don’t overbake! Mahi mahi cooks quickly — check it at the 12-minute mark.
- Dry before seasoning. Moisture prevents browning and flavor absorption.
- Use a thermometer. For perfect results, the fish should reach 137–140°F inside.
- Fresh is best. Fresh mahi has a firm texture and mild aroma; avoid fillets that smell “fishy.”
- Let it rest. A brief 2-minute rest after baking allows juices to redistribute, keeping it moist.