If you are going to use wooden skewers, be sure to soak in water for at least one hour
Start the grill, allowing it to heat thoroughly
In a large bowl, whisk together onion powder, garlic powder, oregano, basil, thyme, black pepper, sea salt, cayenne, paprika, sea food seasoning and olive oil
Add the shrimp to the bowl, cover with plastic kitchen wrap and allow to marinate for 1 hour
If you are using skewers, thread the shrimp; if you are using the shrimp cast iron, allow it to heat on the grill for at least 5 minutes
Cook the skewered shrimp for 5-6 minutes, flipping once halfway through or until pink and opaque; Cook the cast iron shrimp for 5 minutes or until pink and opaque
Remove the shrimp, garnish with parsley and heavy squeeze of lemon