Heat oil in a wide pan over medium heat. Add the onion, tomato, and bell pepper. Sauté for five to seven minutes, until soft and fragrant.

Add the chicken and cook for three to four minutes, stirring until lightly browned on all sides.

Stir in the tomato paste and silan. Cook for one to two minutes to deepen the flavor.

Add the couscous, water, and spices. Stir well.

Bring to a boil and cover. Lower heat and simmer for 20 minutes, until the couscous is tender and the liquid is absorbed.

Fluff with a fork. Garnish with fresh herbs before serving.