Grilled sardines are a simple, traditional seafood dish especially common in coastal Mediterranean areas and during summer months, when fresh sardines are plentiful. The dish is straightforward and emphasizes the natural flavors of the sardines: they are typically marinated in a mixture of olive oil, lemon juice, black pepper, and salt (although a variety of spices and herbs can also be added, depending on the region) before being grilled over a charcoal fire.