Heat the oil in a Farberware Classic Series 2.75-quart saute pan over medium-high heat. Add the onion and cook until slightly softened, 3-4 minutes. Add the couscous and cook until lightly browned, about 3-4 minutes. Stir in the garlic and raisins and cook, stirring often, until raisins soften slightly, 2 minutes. Add 1 1/3 cups water and bring to a boil. Reduce heat to medium-low, cover, and simmer until the liquid has been absorbed, about 10 minutes. Remove from the heat and stir in the olives, parsley, salt and pepper.