Summer gratin: Slice zucchini and summer squash; toss with olive oil. Spread in baking pan. Season with salt and pepper. Bake at 450 for 15 minutes.
Remove from the oven and top with a layer of scamorza (or other good melting cheese) and then a layer of thinly sliced tomatoes. Sprinkle with seasoned bread crumbs (dried bread crumbs, minced garlic, freshly grated parmigiano cheese, finely chopped fresh herbs such as basil, parsley and thyme).
Return to the oven and bake for 15 to 20 minutes, until cheese is bubbling and gratin is browned on top.