01 - Combine olive oil, smoked paprika, cumin, salt, pepper, and lime zest in a bowl. Toss barramundi strips in the mixture until evenly coated.
02 - Mix cabbage, carrot, red onion, coriander, lime juice, olive oil, salt, and pepper in a separate bowl. Set aside to marinate and develop flavors.
03 - Heat a non-stick skillet or grill pan over medium-high heat. Cook barramundi strips for 2–3 minutes per side until golden brown and just cooked through.
04 - Heat tortillas in a dry skillet or microwave until soft and pliable, ready for assembly.
05 - Layer slaw onto each tortilla, top with cooked barramundi, arrange avocado slices, add a dollop of sour cream or yogurt, and garnish with fresh coriander.
06 - Present tacos with fresh lime wedges on the side for squeezing over the top.