Cook couscous according to package directions, omitting salt and fat. Keep couscous warm.
Heat oil in a large nonstick skillet over medium-high heat. Add zucchini and onion; sauté 3 minutes or until tender. Stir in couscous and corn; cook 1 minute or until thoroughly heated. Stir in salt and black pepper.
Tried this recipe for the first time tonight. Good side dish recipe. Could include any veggies you wanted. Makes quite a bit, but can easily be modified to make less (good for those cooking for one or two).