For the sunchokes: Preheat the oven to 400 degrees F. Place the sunchokes and garlic on a sheet tray. Drizzle with the olive oil and toss. Season with salt and pepper and toss again.
Scrub the sunchokes very well to remove all the grit form them, they are root vegetables so they grow in the ground and can be sandy if you don't take care. It is not necessary to peel them, if scrubbed well. Be sure to cut the sunchokes the same size so they roast evenly.