Chop garden or farmer's market large zucchini into 1/2 inch thick cubes or quarter moons. If zucchini is medium size, half moons are perfect. And baby zucchini could be sliced into rounds.
Preheat large ceramic non-stick skillet with tall sides on high heat and then swirl oil. Add zucchini, salt and pepper.
Cook for 3 minutes, stirring maximum 2 times. Let zucchini touch the hot skillet surface for at least a minute to really get that sear. Don't stir constantly to avoid pale "steamed" zucchini. And don't stir cooked zucchini to make it mushy too much.
After zucchini is cooked, sprinkle with herbs and freshly grated garlic. Stir and grate fresh Parmesan cheese on top. Serve warm or cold.
Notes
Store: Refrigerate covered for up to 2 days. Do not freeze.
Avoid dry ingredients: Fresh herbs, fresh garlic (not garlic powder), and fresh parmesan (not from a shaker) will have the best results!
Don’t slice them too thin: The thinner you slice the zucchini, the more likely that they will be soggy.
Remove from heat: Remember that your zucchini will continue to cook slightly from residual heat.
Cook in batches: If you want to make a large amount, it's best to cook the zucchini in batches so it can properly brown.