1 pound white fish (such as mahi mahi), cut into 1 inch pieces
¼ cup taco seasoning
juice of 1½ limes, divided (plus additional lime wedges for serving)
2 cups slaw or thinly sliced cabbage
¼ cup mayo
8 taco-sized flour tortillas (6-inch tortillas)
1 medium or large avocado
juice of 1 lime
⅓ cup cilantro
4 tablespoons mayo or plain greek yogurt
1 teaspoon salt (or to taste)
1 teaspoon garlic powder
milk or water, as needed