I use two different types of sauce on my fish tacos. One I make out of Mexican crema, lime juice , cilantro and optional hots sauce of your choice.
The other I use plain greek yogurt , lime juice , cilantro and optional hot sauce of your choice.
If your genetically opposed to cilantro that is optional as well. If like a little garlic add that. Sub adobo sauce for any hot sauce. Adjust per your own taste. I like to keep it simple.
