Ingredients

12 small red potatoes, halved1 medium sweet potato, peeled and cut into chunks4 tablespoons butter, melted, divided4 to 6 garlic cloves, minced, divided2 tablespoons minced fresh parsley, divided1-1/2 teaspoons salt, divided1/2 teaspoon lemon-pepper seasoning, divided3/4 pound whole fresh mushrooms1 large onion, sliced1 medium green pepper, cut into 1/4-inch slices1 small zucchini, cut into chunks1 medium yellow summer squash, cut into chunks1 cup shredded part-skim mozzarella cheese or shredded Swiss cheeseSour cream, optional

Preparation

Place potatoes and sweet potato on an 18x15-in. piece of heavy-duty foil. Drizzle with half of the garlic, parsley, salt and lemon-pepper. Seal packet tightly. Grill, covered, over indirect medium-hot heat for 20 minutes on each side.

Meanwhile, place mushrooms, onion, green pepper, zucchini and summer squash on a 20x18-in. piece of heavy-duty foil. Drizzle with remaining butter; sprinkle with remaining seasonings. Seal packet tightly. Grill, covered, over medium-hot heat for 10 minutes on each side or until the vegetables are crisp-tender.

Combine the contents of both packets in a serving bowl; sprinkle with cheese. Serve with sour cream if desired.