Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13 inch baking dish.
In a large skillet over medium heat, melt the butter. Add the onion and garlic, and cook until onion is translucent, about 5 minutes. Add the zucchini and cook until tender, about 10 minutes.
Stir in the salt, pepper, oregano, and thyme. Add the flour and stir to combine.
Spread the zucchini mixture into the prepared baking dish. Sprinkle the cornbread mix over the zucchini.
Bake for 25 minutes, until the top is golden brown. Sprinkle with cheese and bake for an additional 10 minutes, until cheese is melted.
Interesting Facts
Zucchinis are a member of the summer squash family.