Preheat the oven to 425 degrees. Line a baking tray with a silicone mat or lightly grease it with oil. Slice the Brussels sprouts into thin pieces, about 1/4" thick. Pile them on the tray and toss them with oil, salt, and pepper. Spread the Brussels sprouts evenly across the tray and roast for 10 minutes. Stir them and roast an additional 2-4 minutes, until they are tender, lightly crisped and browned on the edges. Remove from the oven and sprinkle with cheese. Enjoy!
Notes
Parmesan can be substituted for the Asiago. However, Asiago is slightly sweeter and more mild. It will melt into the warm vegetables more smoothly than the harder Parmesan. Do try the Asiago, if you are able to find it!