Preheat your oven to 200C (400F). Combine beef and carraway seeds (if using) in a medium bowl and season generously with salt and pepper. Scoop tablespoons of the beef mixture and roll into meatballs. Place meatballs in an oven proof dish large enough to hold them in a single layer.
Roast meatballs for about 20 minutes or until well browned and cooked through.
While the meatballs are cooking combine tahini and yoghurt in a medium bowl. Smash garlic (if using) and chop as finely as you can and add to the tahini yoghurt sauce.
To serve, spread yoghurt tahini sauce over two plates. Top with meatballs and coriander leaves.