Chef Bobby Flay celebrates his favorite dish by revealing his effortless approach for dynamite fish tacos. He's mixing a customized spice rub to use on Grilled Mahi Mahi and balancing flavors and textures with an Avocado Relish With Cilantro Pesto, a Red Cabbage Citrus Slaw and a Smoked Tomato Salsa Yogurt Crema. And he'll cool things down with some fruity Sparkling Aguas Frescas.