How to Make It
In a large bowl, soak the bread in the hot water until absorbed, about 5 minutes. Add the onion, parsley, egg, salt and pepper and knead until combined. Knead in the beef and lamb until combined.
Line a large baking sheet with plastic wrap. Using moistened hands, roll the meat mixture into 18 oval patties. Cover and refrigerate the patties for at least 1 hour.
Preheat a grill pan. Brush the köfte with olive oil and grill over moderately high heat, turning occasionally, until browned and cooked through, about 7 minutes. Serve immediately with warm pita bread or mashed potatoes.