Place the first 8 ingredients, (through oregano) in a food processor, and pulse the chimichurri until combined.
Season the steak generously with salt and pepper, and place in a bowl or large ziplock bag. Pour in half the chimichurri, coating to marinate, and let sit in the fridge covered for 2 hours.
Preheat the grill to high, and let the steak come to room temperature. Coat the green beans with a drizzle of olive oil and a sprinkling of salt and pepper.
Grill the steaks until they reach your desired temperature, and grill the green beans for about 10 minutes total.
Let the steak rest 10 minutes, and then drizzle with chimichurri.
Recipe by Ally's Cooking at http://allyscooking.com/2016/09/12/chimichurri-grilled-skirt-steak-and-green-beans/