In a large bowl combine garlic, chilli, coriander stalks and lime juice in a small bowl.
Add fish and turn to coat. Cover with plastic wrap and refrigerate for at least 3 hours
To make the chipotle mayo, whisk together mayonnaise, greek yogurt, chipotle paste, lime juice and garlic.
Melt butter in a large skillet over medium high heat. Add tilapia and cook, flipping once, about 2-3 minutes per side OR cook 2-3 min per side on a BBQ
Serve fish and other accompaniments on tortillas, drizzled with chipotle mayo
Follow directions above, but serve in individual tortilla cups. To make:
Note: Don’t pour the excess marinade over the fish. It makes it too limey