Line a rimmed baking pan with a sheet of parchment paper. In a medium bowl, toss the green beans, garlic and olive oil together until completely coated. Then, spread the coated green beans on the lined pan in a single layer without crowding.
Season with salt and pepper, then roast in the pre-heated oven for 15 minutes. Remove from oven once during this time to turn the beans so they cook evenly.
When finished roasting, remove from oven and place beans on serving tray. Before serving, drizzle with extra virgin olive oil and sprinkle with grated Parmesan cheese.
This makes a great recipe for Thanksgiving dinner sides.