Whisk together lemon juice, 3 tablespoons olive oil, 1 teaspoon Cajun seasoning, and pepper in a small bowl.

Set the dressing aside.

Toss shrimp with remaining Cajun seasoning.

Heat remaining olive oil in a large skillet over medium-high heat.

Add shrimp mixture to the skillet.

Cook and stir until shrimp turn pink and are cooked through.

Place lettuce leaves on flatbread wraps.

Top with cucumbers, red onion slices, parsley, and cooked shrimp.

Drizzle with the prepared dressing.

Roll up the wraps and secure with toothpicks if desired.