Preheat the grill to medium-high heat.
In a bowl, combine olive oil, lemon juice, minced garlic, chopped parsley, salt, and pepper.
Place the cleaned and scaled sardines in the marinade, ensuring they are well-coated. Let them marinate for about 10 minutes to allow the flavors to infuse.
Once the grill is hot, lightly oil the grates to prevent sticking.
Remove the sardines from the marinade, shaking off any excess, and place them on the grill.
Grill the sardines for approximately 4-5 minutes per side, or until they are cooked through and have a slight char.
Carefully remove the sardines from the grill and transfer them to a serving platter.
Squeeze fresh lemon juice over the grilled sardines for an extra burst of citrus flavor.
Serve the Spanish Grilled Sardines immediately with lemon wedges on the side.
