1. Toss together mango, red onion, jalapeño, lime zest and juice, and chopped cilantro. Fold in avocado and season with salt and pepper.
2. Mix sour cream with salsa verde. Season with salt and pepper.
3. Top tortillas with chile verde sour cream, a piece of fish, some mango-avocado salsa, cabbage and small cilantro springs.
Tip: If desired, serve with hot sauce and lime wedges for presentation and flavor.