When you usually think of fish tacos you think of deep fried fish. That's a lot of mess, a lot of time, and to me completely hides the flavor of the fish. So, skip the fry. Pan sear the fish. It's healthier, and to me and The Crew, taste so much better. It gets nice and crispy around the edges, the flavor of the fish really gets to come through, and there's a whole lot less mess (and cooking time). Seriously, with these tacos you have one cast iron skillet to clean up (okay, one small mixing bowl and your cutting board).
These tacos work great with any firm white fish you can get you hands on. On this particular day we had frozen mahi mahi on hand. As I've mentioned before, I live in Tennessee, so access to fresh seafood is really a luxury and, to be honest, I really don't have a problem with the flash frozen fish. The cilantro, shallots, and red cabbage really give the tacos a nice crisp flavor. There's also something about about crema (Mexican-style sour cream that's not quite as sour) that goes particularly well with the cabbage. I'm not sure why but it does. As does the sriracha (couldn't find any other hot sauce when I first decided to try making fish tacos and I took a chance and I'm never going back). Yes, that's right sriracha that gives them a nice kick of peppery, garlicky heat. The Cotija cheese, think Mexico's version of Parmesan but with it's own special funkiness, cools down the spice and the whole thing just comes together into a wonderful little package.
A couple of notes on searing fish that I have learned (and ruined many a piece of fish). One is you want the fish completely dry. Second you want the pan/skillet screaming hot. If the fish is wet and/or the skillet is not hot enough that it sounds like 4th and Goal in the Super Bowl when the fish hits the pan you run the risk of having fish hash. Not a problem for fish tacos, but it will look better and have a nice crunchy texture around the edges if you do it right. Again, that's all if you're not using non-stick. If you are using a non-stick pan then follow your manufacturers recommendations for how much heat it can take.