Preheat your oven to 400 degrees. Oil a 10-11 inch pan.
In a bowl combine the breadcrumbs, cheeses, salt and pepper. Stir to combine.
Place a layer of zucchini in the bottom of the pan. Top with 1/3 of the ham, 1/3 of the cheese and 1/3 of the breadcrumb mixture. Drizzle with 2 tablespoons of oil.
Repeat twice more.
Bake for 30 minutes, or until the cheese on top begins to turn golden brown.
Cool for 30-40 minutes before cutting. May be served warm or at room temperature.