In a mixing bowl, whisk together lime juice, olive oil, and minced garlic. Add ground cumin, paprika, salt, black pepper, and cayenne pepper.

Stir in chopped cilantro to the marinade and add mahi-mahi fillets, marinating for 10-15 minutes.

Preheat your grill to medium-high heat, around 400°F (200°C), ensuring the grill is clean.

Place marinated mahi-mahi fillets on the grill. Cook for about 5 minutes on each side until opaque and flaky.

Remove the fish from the grill and let it rest for a minute before serving with fresh sides.