How to Make It
Prepare the couscous according to the package directions. Meanwhile, heat grill to medium. In a large bowl, toss the zucchini, squash, eggplant, tomatoes, and scallions with the olive oil, 1 teaspoon salt, and ½ teaspoon pepper.
Working in batches if necessary, grill the vegetables, covered, turning occasionally, until tender, 4 to 6 minutes for the eggplant and squash and 1 to 2 minutes for the tomatoes and scallions. Serve with the couscous and Spiced Chili Oil, for drizzling.