Grilled Shrimp Scampi Skewers

olive oil

large lemons, halved

crushed garlic

chopped fresh parsley

crushed red pepper flakes

peeled and deveined large shrimp (1 lb)

large lemons sliced into 24 very thin rounds (optional)

bamboo skewers, soaked in water 1 hour

cooking spray

fresh shredded parmesan