Heat large saute pan on grates of the grill
over medium heat. Add couscous and toast until lightly golden brown.
Bring 6 cups of water to a boil over high heat, add 1 tablespoon salt and toasted couscous and cook until al dente
well and place in a large bowl. Add grilled vegetables, olives, basil
, and vinaigrette and toss until combined; season with salt and pepper. Let sit at room temperature for 30 minutes before serving or cover and refrigerate.