Mix all ingredients for salsa and set aside.

Slice avocado and place on a plate along with the coriander springs.

Season and lightly oil the fish fillets. Place first side onto hot grill, allowing fillet to cook for two minutes on first side without interrupting it. Flip and allow to finish cooking on second side.

Place small piece of fish on taco, add some salsa, avocado wedge, coriander and drizzle with sriracha, fold and pass to guests and enjoy!