Mussels with Israeli Couscous and Tomatoes Recipe

Name: Mussels with Israeli Couscous and Tomatoes Recipe
Ingredients: 2 tablespoons olive oil; 1 large yellow onion, diced (about 1 1/2 cups); 4 medium cloves garlic, minced (about 4 teaspoons); 5 sprigs fresh oregano, leaves picked off and chopped; 1 (28 ounces) can whole peeled tomatoes, broken up into 1/2- to 1/4-inch pieces; 1/2 cup white wine; Kosher salt and freshly ground black pepper; 2 cups Israeli couscous; 2 pounds mussels, scrubbed and debearded (discard any that do not close when tapped); 1/2 cup chopped fresh parsley leaves