01 - Preheat the oven to 390°F. Line a baking tray with parchment paper.
02 - In a mixing bowl, combine the ground beef, grated onion, minced garlic, parsley, cilantro, cumin, cinnamon, paprika, coriander, salt, and pepper. Mix until evenly incorporated.
03 - Roll the mixture into small meatballs, approximately ¾ inch in diameter, and arrange them on the prepared baking tray. Bake for 12–15 minutes until cooked through and lightly browned. Set aside.
04 - While the meatballs bake, heat olive oil in a large pot over medium heat. Add the diced onion, carrots, celery, and red bell pepper. Sauté for 5–7 minutes until the vegetables have softened.
05 - Stir in the garlic, cumin, smoked paprika, turmeric, and cayenne. Cook for 1 minute until fragrant.
06 - Pour in the broth and chopped tomatoes. Bring to a boil, then reduce the heat, cover, and simmer for 10 minutes to allow the flavors to meld.
07 - Stir in the couscous and baked meatballs. Season with salt and pepper. Simmer uncovered for 5–7 minutes until the couscous is tender and the soup has thickened slightly.
08 - Stir in the lemon juice and adjust seasoning to taste. Ladle into bowls and garnish generously with fresh cilantro or parsley. Serve hot.