Instructions
Begin by preparing your spicy marinade. On a large plate, blend the Cajun spice and cayenne pepper with a pinch of salt and black pepper, ensuring even seasoning. Carefully coat each white fish fillet all over with this vibrant spice mix, pressing gently to adhere the seasoning well. Warm a teaspoon of vegetable oil in a frying pan over medium heat until shimmering. Place the seasoned fish fillets in the pan, cooking them undisturbed to develop a gorgeous, golden crust. After about 3-4 minutes, carefully turn the fillets and reduce the heat to medium-low, allowing the fish to cook gently through for approximately 6-7 minutes more. The fish should flake easily when tested with a fork and have a moist, tender interior. If your pan is small, cook the fillets in batches to avoid overcrowding. Meanwhile, prepare the zesty dressing by combining the sour cream, finely chopped garlic, a generous squeeze of fresh lemon juice, and a pinch of salt and pepper in a small bowl. Mix well until smooth and creamy, then set aside to let the flavors meld. To soften the flour tortillas, warm them individually in the microwave for 5-10 seconds until pliable and pleasantly warm. Assemble your tacos by layering each tortilla with shredded little gem lettuce, sliced avocado, and thinly shredded spring onions. Spoon a generous amount of salsa over the veggies before topping with large flakes of the spicy cooked fish. Finally, drizzle the creamy garlic and lemon dressing over the fish-topped tortillas for a burst of tangy freshness. Serve immediately, enjoying the wonderful contrast between the spicy, flaky fish and the cool, crisp toppings.