Blanch broccoli rabe in a large pot of boiling salted water for 2-3 minutes. Drain and shock in ice bath. Drain and wrap in a dry towel, squeezing out any excesss water. In a large saute pan, cook garlic and crushed red pepper flakes for 1 minute. Add broccoli rabe and cook and stir until heated through. Stir in breadcrumbs and toss all together. Season to taste with salt and pepper.