Combine 2 cups water and tomatoes in a microwave-safe bowl. Microwave at high 3 minutes or until water boils; cover and let stand 10 minutes or until soft. Drain and chop; set aside.
Place 1/3 cup water and vegetable broth in a large saucepan; bring to a boil. Stir in couscous. Cover, reduce heat, and simmer 8 minutes or until tender. Remove from heat; stir in tomatoes and remaining ingredients.