Simple Grilled Vegetables

Ingredients

• 2 zucchinis, cut into 1/2-inch slices
• 2 green bell peppers, cut into chunks
• 1/2 pound whole button mushrooms
• 1/2 pound cherry tomatoes
• 1 red onion, cut into 1/2-inch-thick slices
• 1/2 cup extra-virgin olive oil
• kosher salt to taste
• freshly ground black pepper to taste