In a nonstick skillet set over moderately high heat, warm the oil until it is hot, add the onion and cook it, stirring occasionally, for 3 minutes. Add the zucchini, herbes de Provence, salt and pepper and cook, stirring occasionally, for 3 to 5 minutes more, or until lightly golden. Let cool.
In a bowl combine the veal, egg, 3 tablespoons of the parsley, the garlic, herbs, Cavender?s Greek seasoning, salt and pepper to taste.
In a 9 inch greased pie pan sprinkle 2 to 3 tablespoons of the bread crumbs, or enough to coat the bottom of the pan evenly. Add half of the zucchini mixture to the pan, arranging it in an even layer, top with the meat and finally cover with the remaining zucchini.
In a bowl combine the remaining parsley, bread crumbs and the Parmesan and sprinkle the mixture over the top of the pie. Drizzle with a little oil. Bake the pie in the oven for 20 minutes, or until cooked through and golden. Let cool slightly before serving. It can be served warm or at room temperature.