Heat olive oil in a skillet over medium heat. Sauté onions, garlic, and bell pepper until softened..Add ground beef and cook until browned, breaking it up with a spoon.Stir in tomato sauce, cumin, oregano, paprika, salt, and pepper. Mix well.Add olives and raisins, and let it simmer on low heat for 15-20 minutes.Serve with white rice or fried plantains.