Ingredients

• 2 (12x18 inch) pieces heavy duty aluminum foil
• olive oil cooking spray
• 4 thin slices red onion
• 1 small zucchini, sliced crosswise
• 10 cherry tomatoes, halved lengthwise
• 1/2 cup frozen yellow corn kernels, thawed
• 4 thin slices fresh garlic or to taste
• sea salt and freshly ground black pepper to taste
• 2 (7 ounce) skinned halibut filets, 1 to 1 ½-inch thick
• 2 tablespoons mayonnaise
• 1 teaspoon italian herb seasoning blend
• 2 tablespoons white wine
• 4 thin slices lemon
• 4 sprigs fresh thyme, or to taste