Try serving this healthy side dish with Braised Short Ribs and Creamy Polenta with Thyme.
In a large skillet, heat oil over medium-high. Add garlic; cook, stirring, until fragrant, about 1 minute.
Place as much broccoli rabe in the skillet as will fit; cook, tossing frequently. Add remainder to skillet as room becomes available; season with salt and pepper. Continue to cook, tossing frequently, until broccoli rabe is tender, 5 to 7 minutes.
Remove from heat; stir in vinegar. Season with salt and pepper.