Preheat your oven to 375°F (190°C).

In a large mixing bowl, toss sliced zucchini, diced red bell pepper, and halved cherry tomatoes with olive oil, salt, and dried oregano. Spread them evenly on a baking sheet and roast for 15 minutes, stirring halfway through.

While the vegetables roast, combine cottage cheese, large eggs, and half of the shredded mozzarella in a mixing bowl. Stir until the mixture is smooth and well-blended.

Once the vegetables are done roasting, layer them evenly in a greased baking dish. Pour the cottage cheese mixture over the vegetables.

Sprinkle the remaining shredded mozzarella and grated Parmesan evenly over the top of the assembled bake.

Place the assembled casserole in the preheated oven and bake for 30-35 minutes.

Once baked, remove from the oven and allow to cool for about 10 minutes before serving.