Line 2 large baking sheet pans or cookie sheets with parchment paper and set aside.
Use large, small, or medium zucchinis cut into thin uniform slices in order to bake well. Mandoline: Set your mandoline slicer thickness settings, to the thinnest setting to slice into ⅛ inch thin rounds.Hand Slice: Hand slice with a chef knife, make thin ⅛" slices using a sharp knife on a cutting board. Food Processor: Use food processor machine with a flat blade attachment to cut thin slices of zucchini. In a large bowl, combine olive oil, salt, and pepper; mix until well combined. Add in sliced zucchini and stir until well coated.
Preheat oven to 450. Next, in a zip top plastic bag, combine parmesan cheese, panko crumbs, Italian seasoning, and garlic powder. Zip close and shake to mix the parmesan mixture coating. Next, add the sliced zucchini in batches, close the bag again, and shake.
Place the coated zucchini slices in a single layer on the parchment prepared baking sheet pan. Sprinkle extra parmesan and panko on top. Spray the chips with coconut oil spray before baking to help them crisp up.
Bake for 10 minutes, then rotate the pan and bake for 8 to 10 minutes more. This equally distributes the heat in your hot oven until the chips are evenly golden brown. You can flip them over mid-way through baking, but it isn't necessary.
Serve on a platter with your favorite dipping sauce like a Lemon-Dill Yogurt Dip, Remoulade, Green Goddess, Blue Cheese, or Buttermilk Ranch Dressing.