Heat oven to 400 Degrees F.
Line a baking sheet with parchment paper and set aside.
In a large bowl, combine trimmed and halved Brussels Sprouts with garlic cloves
Pour olive oil over the vegetables and stir to combine.
Put Brussels and garlic on baking sheet, arrange sprouts cut side down.
Sprinkle with salt and pepper.
Roast at 400 degrees for 30-40 minutes, shaking tray and stirring sprouts every 5 minutes.