Adding Vegetables and Spices: Add the chopped onion, garlic, and bell pepper to the skillet. Cook until the vegetables are softened, about 5 minutes. Stir in the chopped tomato, green olives, raisins (if using), and tomato paste. Add the ground cumin, paprika, cinnamon, salt, and pepper. Cook for another 10 minutes, allowing the flavors to meld together. Stir in the chopped cilantro and remove from heat.