When ready to serve, in a large skillet, heat olive oil and garlic over medium heat. Cook until garlic is golden, stirring constantly, lowering heat if necessary to keep it from burning. Add broccoli rabe and a pinch of red pepper flakes. Saute over low heat 5 minutes or until broccoli rabe is warmed through and takes on flavors of garlic and pepper. Season to taste with salt and pepper. Garnish with whole peppers if desired.