Place the grated onion in a clean kitchen towel or double layer of paper towels and squeeze out as much moisture as possible.

In a large mixing bowl, combine the ground lamb, drained onion, minced garlic, chopped parsley, thyme, cumin, coriander, salt, and cracked black peppercorns.

Using your hands, gently knead the mixture until the herbs and spices are uniformly distributed throughout the meat. Do not overmix.

Divide the lamb mixture into 12 equal portions. Mold each portion tightly around a flat metal skewer or soaked wooden skewer into an elongated sausage shape.

Thread the beef sausages onto separate skewers.

Preheat a grill or grill pan over medium-high heat. Lightly oil the grill grates to prevent sticking.

Place the lamb koftas and beef sausages on the grill. Cook for 8 to 10 minutes, turning every 2-3 minutes, until beautifully charred on the outside and cooked completely through.

Remove from the heat and let rest for 3 to 5 minutes before serving.