Preheat your oven to 425°F (220°C).
Line a baking tray with parchment paper or lightly grease it.
Cut the eggplant into round slices, about 1/4 inch thick.
Arrange the eggplant slices in a single layer on the prepared baking sheet.
Using a brush, coat both sides of each eggplant slice with olive oil.
Generously sprinkle the slices with garlic powder, red pepper flakes, paprika, and Italian seasoning.
Place the tray in the oven and roast the eggplant for 20 minutes or until the slices are tender and golden brown.
Once done, remove the tray from the oven and lightly season the slices with salt.
Serve immediately and enjoy your spicy garlic eggplant slices!