This Turkish vegetarian eggplant appetizer with garlic and walnuts is a delicious and healthy dish that is perfect for parties or as a light snack. The eggplants are roasted until tender and then mashed with garlic, lemon juice, and olive oil. The mixture is then mixed with chopped walnuts for added crunch and flavor. Serve this appetizer with warm pita bread or crackers for a tasty and satisfying treat.