Mise en Place: Gather your fresh limes, cilantro, garlic, jalapeño, extra virgin olive oil, and salt before you begin.
The Marinade: Pulse the aromatics and oil in a food processor until you achieve a vibrant green consistency.
The Soak: Place the Mahi Mahi in a Ziploc bag with the marinade and refrigerate for one hour to infuse the flavor.
Sauce Prep: Whisk the sour cream, mayo, onions, cilantro, lime, and salt together then chill until serving.
BGE Setup: Preheat your Big Green Egg to 450°F using the direct heat method for a clean, professional sear.
The Sear: Grill the filets for four minutes per side with the dome closed to lock in moisture and flavor.
The Pull: Remove the fish once the internal temperature hits 130°F on an instant-read thermometer for maximum juiciness.
The Rest: Let the Mahi Mahi sit for five minutes to ensure the juices redistribute through the meat before slicing.
The Build: Slice the fish and serve on warm tortillas topped with crisp slaw and a generous drizzle of Cilantro Lime Crema.