Grilled Eggplant - With poultry

1 large eggplant about 1 1/2 pounds, cut into 12 1/4-inch-thick rounds * 1 x nonstick cooking spray as needed * 1/4 teaspoon salt 2 1/2 tablespoons parmesan,[...]

1 each eggplant sliced in circles * 1 each zucchini sliced on the bias 1 each yellow squash sliced on the bias 1 each tomato beefsteak 1/4 cup gouda cheese[...]