01 -
Set your oven to 375°F (190°C). Get a medium baking dish ready—rub it with oil or use parchment so cleanup's a breeze.
02 -
Rinse your zucchinis really well, then chop them into about 1/4-inch thick coins. Toss them all into a big bowl.
03 -
Pour olive oil over the zucchini slices. Throw in the chopped garlic, sprinkle in oregano, salt, and pepper. Mix it all up so every piece gets some of that goodness.
04 -
Stir together the mozzarella, Parmesan, and breadcrumbs in another bowl until they're all mixed up.
05 -
Put half your seasoned zucchinis at the bottom of the dish—they can overlap a bit. Scatter on half your cheesy breadcrumb mix.
06 -
Layer the last of the zucchini on top, then pour on the rest of the cheese-breadcrumb blend so everything's covered and will crisp up.
07 -
Pop your dish onto the middle oven rack. Let it cook about 20 to 25 minutes—you're looking for soft zucchini and a bubbling, browned topping.
08 -
Take it out of the oven and let it cool a little. Add fresh basil if you want. Serve while it's still warm and gooey.