Grilled Mahi-Mahi Tacos with Avocado Lime Slaw

This recipe for Mahi Mahi Fish Tacos features mahi mahi marinated in cilantro, lime and jalapeño, then grilled and topped with fresh pico de gallo and avocado. Bright, flavorful and quick to prepare, these tacos are perfect for a backyard gathering or a simple weeknight dinner.

Memorial Day weekend often means grilling outdoors and enjoying fresh, seasonal flavors — and these mahi mahi fish tacos are exactly that. The marinade combines citrus, cilantro and a touch of chipotle for gentle heat and smoky depth, while pico de gallo and ripe avocado add bright, cooling contrast. The recipe is straightforward and forgiving: quick marinate, a short time on the grill, and easy assembly. It’s a great option if you want something that feels special without a lot of fuss.

Ingredients

• 1/4 cup olive oil
• 1 tablespoon fresh lime juice
• 1 tablespoon fresh lemon juice
• 1 tablespoon chipotle chili powder
• 1 teaspoon ground cumin
• 1 teaspoon sea salt
• 1 jalapeño, minced
• 2 garlic cloves, minced
• 1/4 cup fresh cilantro leaves, chopped
• 1 pound mahi mahi fillet
• 8 small corn tortillas

Topping ideas

• 2 avocados, diced — add slices or mash for a creamy contrast
• 1 cup shredded cabbage — provides crunch and freshness
• 1 cup pico de gallo — fresh tomato, onion, cilantro and lime brighten the tacos
• Hot sauce or sriracha — a drizzle for heat lovers
• Cilantro-lime crema — a simple mix of sour cream (or yogurt), lime and cilantro
• Pickled onions or radishes — optional, for tang and color

Instructions

Prepare the marinade: whisk together the olive oil, lime juice, lemon juice, chipotle powder, ground cumin, sea salt, minced jalapeño, minced garlic and chopped cilantro in a small bowl until well combined.

Place the mahi mahi in a shallow dish and pour the marinade over the fillet, making sure the fish is evenly coated. Cover and refrigerate for 15 minutes — keep the marinating time short so the acid in the citrus doesn’t begin to “cook” the fish.

Preheat your grill to medium heat. Oil the grates lightly to prevent sticking. Remove the fish from the refrigerator and place on the grill, skin side down if the fillet has skin. Grill for 10–15 minutes, depending on thickness, until the fish is opaque and flakes easily with a fork. A moderate, steady heat cooks the fish through without drying it out.

When the fish is done, remove it from the grill and let it rest for about 5 minutes. Use a fork to gently pull the fish away from the skin and break it into bite-sized pieces suitable for tortillas.

Warm the corn tortillas on the grill for about 20 seconds per side until pliable and slightly charred. Fill each tortilla with flaked mahi mahi, then top with diced avocado, shredded cabbage and pico de gallo. Finish with a squeeze of lime and a few drops of hot sauce or a drizzle of cilantro-lime crema if desired.