Al Roker's Grilled Vegetable Skewers Recipe

Ingredients

• 1 summer squash, quartered and cut into 1/2-inch pieces
• 1 zucchini, quartered and cut into 1/2-inch pieces
• 1 red onion, peeled and cut into thick slices
• 15-20 cherry tomatoes
• 15-20 white mushrooms
• extra-virgin olive oil, for drizzling
• kosher salt and freshly ground black pepper, to taste