Heat the olive oil in a skillet over medium heat.  Combine the chopped shrimp and creole seasoning in a mixing bowl.  Use your hands to toss until the shrimp is evenly coated.  Pour the shrimp into the skillet and stir-fry until the shrimp is cooked.  Return the cooked shrimp to the mixing bowl and set aside to cool.  When cool, add the remaining ingredients to the mixing bowl and toss until thoroughly mixed. Top each avocado half with a generous dollop of crab salad and serve.

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