In a large mixing bowl, combine the ground chicken, finely chopped onion, minced garlic, parsley, cumin, coriander, salt, and black pepper. Mix until evenly distributed. Do not overmix.

Wet your hands with cold water. Shape the mixture into small oval koftas about 3 inches long, pressing firmly so they hold their shape. You should get roughly 12 koftas.

Optional but recommended: place the shaped koftas on a covered plate and refrigerate for 10 minutes to help them hold together on the grill.

Preheat your grill or grill pan over medium-high heat. Brush the surface well with olive oil. Make sure the grill is fully hot and oiled before adding the koftas.

Grill the koftas for 10 to 12 minutes total, turning every 3 to 4 minutes, until golden brown on all sides and the internal temperature reaches 165 degrees F.

While the koftas grill, whisk together the yogurt, lemon juice, minced garlic, and a pinch of salt in a small bowl until smooth. Taste and adjust seasoning before serving.

Arrange the finished koftas on a serving platter and serve with the yogurt sauce on the side for dipping. Warm pita bread or fluffy rice on the side makes this a complete meal.