01 - In a large bowl, whisk together olive oil, minced garlic, lemon juice, lemon zest, chopped parsley, smoked paprika, crushed red pepper flakes if using, salt, and black pepper.
02 - Add shrimp to the marinade and toss until fully coated. Let sit at room temperature for 10 to 15 minutes.
03 - Heat grill or grill pan to medium-high temperature.
04 - Thread 4 to 5 marinated shrimp onto each skewer.
05 - Grill skewers for 2 to 3 minutes per side until shrimp are opaque and lightly charred.
06 - Remove from grill, garnish with extra parsley, and serve immediately with lemon wedges.