Wash both Tomatoes, and Zucchini.
Thinly slice Zucchini and Tomatoes.
Oil brush a medium size baking pan. Layer the bottom of the baking pan with Zucchini, and then on layer of Tomatoes.
Top with Oregano, Parmesan Cheese, Mozzarella Cheese (Salt and Pepper)
Place the toast on top of the layer of Tomatoes.
Pour 1/2 of the Olive oil over the bread.
Layer the rest of the ingredients. Top off with the left over Parmesan and Mozzarella cheese, Oregano, and the Olive oil.
Bake for 30 minutes in a pre – heated oven.