01 - Squeeze excess moisture from the grated cucumber using a clean kitchen towel or paper towels. In a mixing bowl, combine Greek yogurt, cucumber, garlic, dill, lemon juice, olive oil, salt and pepper. Stir until smooth and well blended. Refrigerate until ready to serve for the best flavor.
02 - In a large bowl, combine ground turkey, breadcrumbs, egg, garlic, onion, parsley, mint, oregano, cumin, salt and pepper. Mix gently until just combined, being careful not to overwork the mixture.
03 - Form the mixture into 18 to 20 walnut-sized meatballs, rolling each one gently between your palms for a uniform shape.
04 - Heat olive oil in a large nonstick skillet over medium heat. Add meatballs in batches and cook for 8 to 10 minutes, turning regularly, until golden brown on all sides and cooked through to an internal temperature of 165°F.
05 - Preheat oven to 400°F. Arrange meatballs on a parchment-lined baking sheet and brush or spray lightly with olive oil. Bake for 15 to 18 minutes, turning halfway through, until golden and cooked through.
06 - Arrange meatballs on a platter with a generous dollop of tzatziki. Garnish with fresh herbs and serve alongside lemon wedges. Accompany with warm pita bread or a side salad if desired.