Place the harissa, paprika, Alamir Bakery Tahini , garlic, salt and pepper in a bowl and mix to combine. Add the beef and toss to coat. Cover and refrigerate for 20 mins to marinate.
Preheat a chargrill pan, oven grill or BBQ to high heat.
To make the spiced tahini sauce, place the yoghurt, Alamir Bakery Tahini , cumin, mint, salt and pepper in a bowl and stir to combine. If needed, add 2-3 tablespoons of water to achieve your desired consistency, set aside.
Thread 2 pieces of beef onto metal or bamboo skewers soaked in water, repeat with the remaining beef.
Drizzle the beef skewers with the oil and cook for 10 mins, turning, for medium rare or until cooked to your liking.
Serve the skewers with the tahini sauce, zaatar, coriander and lemon wedges.