Step 1: Prepare the Lime Crema : In a small bowl, whisk together sour cream, mayonnaise, lime juice, zest, garlic, salt, and pepper. Taste and adjust seasoning — add more lime for tang or garlic for a stronger flavor. Chill in the fridge until ready to use.
Step 2: Make the Slaw : In a large bowl, combine shredded cabbage, carrots, cilantro, olive oil, lime juice, salt, and pepper. Toss well until coated. Set aside to allow the flavors to blend.
Step 3: Season and Cook the Shrimp : Pat shrimp dry with paper towels. In a bowl, toss shrimp with olive oil, Cajun seasoning, paprika, garlic powder, onion powder, salt, and pepper. Heat a large skillet over medium-high heat. Add the shrimp in a single layer and cook for 2–3 minutes per side, until pink and opaque. Squeeze lime juice over cooked shrimp and toss lightly. Remove from heat.
Step 4: Warm the Tortillas : Heat the tortillas in a dry skillet or directly over a gas flame for 10–15 seconds per side until soft and lightly charred. Wrap them in a clean towel to keep warm.
Step 5: Assemble the Tacos Spread a spoonful of lime crema on each tortilla. Add a layer of cabbage slaw. Top with Cajun shrimp and sliced avocado. Drizzle with extra lime crema and sprinkle with cilantro or a dash of hot sauce if desired.