"To try out the Gourmet Grillware, our Test Kitchen came up with this simple side dish featuring tender roasted vegetables with a hint of seasoning. The veggies are great alongside many entrees. You can also prepare this dish in a cast-iron skillet."
Coat grill-and-serve skillet with nonstick cooking spray; place on grill. Cook the onion, red pepper, mushrooms and garlic in oil over medium heat until crisp-tender, about 6-8 minutes. Remove skillet from grill. Stir in the basil, salt and pepper.