Ceviche is a popular dish in Panama, especially along the coastal regions. It is made by marinating raw fish or seafood in citrus juice, typically lime or lemon, which effectively 'cooks' the fish. The ceviche is then mixed with onions, tomatoes, cilantro, and other seasonings to create a refreshing and tangy dish. It is often served with crispy tortilla chips or as a topping for tostadas.