Preheat a grill to 450° F.

Place shrimp in a large mixing bowl. Drizzle with olive oil, then season with oregano, salt, and pepper.

Carefully place shrimp on skewers, securing each shrimp in two places so they don’t move around.

Thinly slice lemon then set aside.

When grill is hot, coat with nonstick grill spray. Place shrimp skewers and lemon slices directly on the grill. Lemon slices will cook for about 1 minute per side. Shrimp will take about 1-2 minutes per side, or until bright pink. Remove from heat and transfer to a serving platter.

Meanwhile, melt butter either in a sauce pan on the grill or in a microwave safe bowl. Once melted, add garlic and parsley, then stir to combine.

Brush shrimp skewers with melted butter, then garnish with chives.