½ cup sour cream
¼ cup mayonnaise
2 tablespoons fresh lime juice
¼ teaspoon garlic powder
1 teaspoon sriracha (or to taste)
3 tablespoons olive oil
2 tablespoons lime juice (about 1 lime)
1 teaspoon ground cumin
½ teaspoon chili powder
½ teaspoon salt
¼ cayenne pepper (optional)
1 pound white fish (like tilapia, cod, halibut)
12 6-inch corn tortillas
½ head purple cabbage (shredded (3 to 4 cups))
1 tomato (diced)
1 avocado (thinly sliced)
¼ red onion (diced)
½ cup cilantro leaves (chopped)
1 lime (cut into wedges)