Combine the lamb, egg, garlic, bread crumbs, mint, parsley, cinnamon, coriander, cumin, salt and pepper in a large bowl. Form the mixture into 16 to 18 meatballs about 1 ¼ inch in diameter.

Heat the olive oil in a large, heavy skillet over medium-high heat. Add the meatballs and cook until lightly browned on all sides, about three minutes total. Transfer the meatballs to a plate, drain the excess fat from the pan and return it to the stove.

To make the sauce, heat the olive oil over medium heat. Add the onion and sauté until soft and translucent, 3 to 4 minutes. Add the garlic and continue cooking until fragrant, one minute longer.

Stir in the tomatoes. Add ½ teaspoon each of cinnamon and coriander and season to taste with salt and pepper. Cook for two minutes, then taste again and adjusted the spices as desired.

Return the meatballs to the pan and turn several times to coat them with the sauce cover and simmer slowly until the meatballs are cooked through, 6 to 8 minutes.

Transfer the meatballs and sauce to a serving dish, garnish with parsley and serve with steamed white rice.