Seed the peppers and slice them into 4 pieces. Transfer them to a sheet tray lined with parchment paper skin side up, and drizzle ½ to 1 teaspoon over the top of each pepper.
Roast in the oven at 475° for 25-30 minutes, rotating the pan 180° halfway through the cooking process. The other option to roast is to spray the peppers whole on all sides with non-stick spray.