Preheat the oven to 400 degrees . Line a baking sheet with parchment. Combine the lamb with liberal amounts of salt and pepper, the parsley, two-thirds of the garlic, the lemon peel, chili powder, paprika and cumin to form 1 1/4-inch meatballs (makes about 65). Drizzle with EVOO and roast on the prepared baking sheet until browned, about 10 minutes.
Meanwhile, in a skillet with high sides or a dutch oven, heat 1 tablespoon EVOO, 1 turn of the pan, over medium-high heat. Add the onion and remaining garlic and cook until softened, 5 to 6 minutes; season with salt and pepper. Add the chicken stock and tomatoes and bring to a boil; season with the cloves and cinnamon. Cook until thickened, about 10 minutes. Slide in the meatballs and simmer for 5 minutes.
Immediately pour the sauce and meatballs into bowls and crack in the eggs, if using. Cover tightly with a plate and let stand for 3 minutes to cook the eggs. Serve with the flatbreads.