To make Psari Psito (Grilled Fish), you will need the following ingredients: 1. Fresh whole fish (such as sea bass, sea bream, or trout) 2. Olive oil 3. Lemon juice 4. Garlic cloves 5. Fresh herbs (such as parsley, dill, or oregano) 6. Salt 7. Black pepper Note: The quantities of the ingredients may vary depending on the size of the fish and your personal taste preferences.