01 - Pat tilapia fillets dry with paper towels. Combine chili powder, cumin, smoked paprika, garlic powder, salt, and black pepper in a small bowl. Season both sides of fillets evenly with spice mixture. Drizzle with olive oil and lime juice, coating thoroughly.
02 - Heat a large nonstick skillet over medium-high heat. Place seasoned fillets in the pan and cook for 3–4 minutes per side until golden brown and cooked through. Remove from heat and let rest for 2 minutes. Flake into bite-sized pieces using a fork.
03 - In a large bowl, combine shredded cabbage, carrots, and cilantro. Add lime juice and olive oil. Season with salt and pepper to taste. Toss thoroughly until all vegetables are evenly coated.
04 - In a small bowl, whisk together sour cream (or Greek yogurt), lime juice, hot sauce (if using), and salt until smooth and fully combined. Adjust seasoning to taste.
05 - Heat tortillas in a dry skillet over medium heat for 30 seconds per side until warm and pliable. Alternatively, wrap in damp paper towels and microwave for 30 seconds.
06 - Layer a generous portion of slaw onto each warmed tortilla. Top with seasoned tilapia pieces. Drizzle with crema. Garnish with sliced avocado, fresh cilantro leaves, and a squeeze of fresh lime juice.
07 - Arrange tacos on a serving platter and serve immediately while tortillas are warm and fish is at peak temperature. Accompany with extra lime wedges and hot sauce on the side.