Preheat oven to 450°. In a large skillet, saute zucchini in oil until crisp-tender. Sprinkle with basil, salt and pepper.

Place half of the zucchini in a greased 8-in. square baking dish. Layer with half of the ham, marinara sauce and cheese. Repeat layers.

Bake, uncovered, 10-12 minutes or until heated through and cheese is melted. Serve with a slotted spoon.