In a small food processor, pulse the chickpeas, fresh parsley, and fresh cilantro until finely minced but not a paste.
In a medium mixing bowl, combine the ground turkey, the chickpea-herb mixture, ground cumin, garlic powder, sea salt, and black pepper.
Mix thoroughly by hand until the ingredients are well incorporated, then form into 4 to 5 small, even patties.
Heat the olive oil in a non-stick skillet over medium-high heat.
Place the patties in the skillet and cook for 4-5 minutes per side until golden brown and cooked through.
While the falafel cooks, whisk together the non-fat Greek yogurt, tahini, and lemon juice in a small bowl until smooth.
Serve the crispy falafel patties immediately with the zesty tahini sauce drizzled over the top or on the side.