Blackened Fish Tacos with Avocado Slaw

Name: Blackened Fish Tacos with Avocado Slaw
Ingredients: 1/2 cup fresh cilantro leaves, plus 1/4 cup chopped; 1 tablespoon mayonnaise; 1 clove garlic; 1/2 avocado; Juice of 1/2 lime; Kosher salt and black pepper; 3 cups thinly shredded green cabbage; 3 green onions, white and green parts only, sliced; 2 teaspoons smoked paprika; 1 teaspoon chili powder; 1 teaspoon ground cumin; 1 teaspoon garlic powder; 1 teaspoon onion powder; Kosher salt; 1 pound mahi-mahi fillets, cut against the grain into 1 1/2-inch strips; 2 teaspoons grapeseed oil; Eight 6-inch corn tortillas, warmed; Chopped cilantro, for garnish; 8 lime wedges, for garnish