Bring a medium pot of water to a boil. Add the couscous and cook until tender, 8 to 10 minutes. Drain and rinse with cold water. Transfer to a large bowl. Drizzle with the EVOO and stir to coat. Stir in the next six ingredients; season with salt and pepper. Transfer to a serving platter.
Top the salad with the feta and parsley; season.
