Preheat the oven to 425°F with a rack in the center position.
Trim the brown ends off the Brussels sprouts and remove any yellow leaves.
Arrange the Brussels sprouts cut-sides down on a rimmed sheet pan, being careful not to overcrowd. Drizzle with olive oil and sprinkle with salt. Toss to combine.
Roast until browned and tender, about 20-25 minutes.