Balik Ekmek, which translates to 'fish bread,' is a popular street food in Istanbul. It consists of grilled or fried fish, usually mackerel or sea bass, served in a bread roll with lettuce, onions, and a squeeze of lemon juice. Balik Ekmek is a delicious and affordable option for seafood lovers in Istanbul. It is often enjoyed by locals and tourists alike, especially near the waterfront areas and fish markets.