Fill the racks with the zucchini slices spacing them apart just like you place them on a baking tray for making. Preheat the oven to 425 degrees Fahrenheit.
Slice the zucchini into 14-inch thick rounds.
Sliced zucchini in oven. With fingers dip each piece of zucchini first into mayonnaise and then into cheese mixture. Put zucchini on ungreased cookie sheet and bake at 350 degrees for 20 minutes. If crispier zucchini is desired bake in hotter oven.
Mix mustard and Italian dressing together in a bowl. Place bread crumbs in a separate bowl. Dip zucchini slices in the mustard mixture.
Coat with bread crumbs. Arrange coated zucchini in a casserole dish. Bake in the preheated oven until soft about 30 minutes.
Go through the same steps to wash the zucchini and slice it in the mandoline. Fill the racks with the zucchini slices spacing them apart just like you place them on a baking tray for making. Preheat the oven to 425 degrees Fahrenheit.
Slice the zucchini into 14-inch thick rounds. In a large bowl mix it with the olive oil garlic powder onion powder oregano and kosher salt. If using plain bread crumbs mix in a generous 14 teaspoon salt.