Pulse the chickpeas in a food processor until they are coarsely ground but not yet a smooth paste.
In a large mixing bowl, combine the ground turkey, processed chickpeas, hemp seeds, parsley, cilantro, minced garlic, cumin, coriander, salt, and pepper.
Mix well and form the mixture into 4 small, even patties.
Heat the olive oil in a non-stick skillet over medium heat.
Cook the patties for about 5 minutes per side until they are golden brown and the turkey is fully cooked.
While the patties cook, whisk together the tahini, Greek yogurt, lemon juice, and water in a small bowl until creamy.
Serve the hot falafel patties drizzled with the lemon-tahini sauce.