Preheat your oven to 375°F (190°C). Lightly oil a 9x13-inch baking dish.
Place the sliced zucchini on paper towels and sprinkle with salt. Let them sit for 10 minutes to release excess moisture, then pat dry.
Layer half the zucchini slices in the prepared baking dish, slightly overlapping them.
Add a layer of tomato slices on top of the zucchini, then sprinkle with half the minced garlic, thyme, and 1 cup of cheese.
Repeat the layers with remaining vegetables, garlic, herbs, and cheese.
Drizzle olive oil over the top, then sprinkle with breadcrumbs.
Bake for 35-40 minutes, until the vegetables are tender and the top is golden brown.
Let rest for 10 minutes before serving.