For couscous, follow the package directions. Add almonds, pistachios and lemon zest. Season to taste with salt and pepper.
Slice all the vegetables and place on a sheet pan. Using an atomizer, spray the vegetables lightly with olive oil. Season with salt and pepper and place on grill. Cook on both sides until tender. Remove from grill. Place couscous in center of plate and arrange vegetables around it. Place oven-roasted artichokes on top. Serve with an accompanying dish of ponzu sauce (a mixture of honey, ginger and garlic-lime or sesame oil) available at specialty food stores.