How to Make It
Toss cabbage, carrots, scallions, jalapeño (if using), salt, and 2 tablespoons lime juice in a large bowl. Stir together sour cream, cilantro, and remaining 2 tablespoons lime juice in a small bowl.
Melt butter in a large skillet over high until foamy. Add shrimp and cook, stirring occasionally, until shrimp turn slightly orange, about 2 minutes. Add Worcestershire sauce and Creole seasoning and cook, stirring occasionally, until shrimp are just cooked through, 2 to 3 minutes.
Divide shrimp among warm tortillas and top with slaw and sour cream mixture. Serve with lime wedges.