Preheat the Oven. Preheat your oven to 425F and position the rack in the center of the oven. This will ensure even cooking and optimal browning.
Prepare the Zucchini. Wash the zucchini thoroughly under cold water, then pat them dry. Trim off the ends and cut the zucchini into uniform slices, approximately 1/4 to 1/2 inch thick. This will help ensure even cooking.
Toss with Flavor. In a large mixing bowl, combine the zucchini slices, olive oil, minced garlic, dried Italian seasoning, salt, and pepper. Toss the zucchini gently to coat each slice with the flavorful mixture.
Arrange on a Baking Sheet. Spread the seasoned zucchini slices in a single layer on a baking sheet lined with parchment paper or aluminum foil. Avoid overcrowding the slices to ensure proper browning and crispiness.
Roast to Perfection. Place the baking sheet in the preheated oven and let the zucchini roast for approximately 15-20 minutes, or until they become tender and golden brown around the edges. You can flip the slices halfway through the cooking time for even browning, if desired.
Garnish and Serve. Once the zucchini slices are beautifully roasted, remove them from the oven. If desired, sprinkle grated Parmesan cheese over the top for an extra layer of flavor. Allow the zucchini to cool for a few minutes, then transfer them to a serving platter. Serve warm as a delightful side dish that complements a wide range of main courses.