Lay them out evenly on cookie sheet.
Drizzle olive oil over Brussels sprouts and then sprinkle with seasonings. The amounts I gave are approximates. I don't usually measure them out and just sprinkle straight from the spice containers.
Bake in oven for about 20-25 minutes or until sprouts are tender (test with fork). Sometimes I tousle them a bit using a spatula, sometimes I don't. They seem to turn out fine either way.
Remove from oven and scoop them onto your plate or into a bowl. Top with freshly grated parmesan cheese or cheese from a bag, or just eat as-is. Whatever your pleasure.