Herbed Vegetable Chips

Oregano, fresh

Summer squash sliced crosswise into 1/8-inch-thick slices, medium yellow

Zucchini sliced crosswise into 1/8-inch-thick slices, medium

Kosher salt

Spray(s) olive oil cooking spray

Large uncooked carrot(s) peeled and sliced diagonally into 1/8-inch-thick slices

Small uncooked sweet potato(es) peeled and sliced crosswise into 1/8-inch-thick slices