-
Step 1
Whisk together the ingredients for the chimichurri until well combined, then set aside.
-
Step 2
Whisk together the dried oregano, red wine vinegar, kosher salt, black pepper, granulated garlic, and olive oil.
-
Step 3
Pat dry the flank steak with paper towels and place it into the resealable plastic bag.
-
Step 4
Pour the marinade in and press out all the air before closing.
-
Step 5
Massage the steak for a minute, then set in the refrigerator to marinate for 2 hours.
-
Step 6
Place the crisper plate into the COSORI Air Fryer basket.
-
Step 7
Select the Preheat function, adjust temperature to 450°F, then tap Start/Pause.
-
Step 8
Remove the flank steak from the bag and let the remaining marinade drip off.
-
Step 9
Coat the preheated basket with oil spray, then place the steak on top. Lightly coat the top of the steak with some more oil spray.
-
Step 10
Select the Broil function, adjust temperature to 450°F and time to 11 minutes, then tap Start/Pause.
-
Step 11
Flip the steak halfway through cooking.
-
Step 12
Remove the steak when done and set on a wire rack to rest for 10 minutes before slicing into ¼-inch-thick slices.
-
Step 13
Assemble the sandwiches by spreading mayonnaise on the bottom half of the ciabatta. Starting from the bottom, place a layer of steak, followed by the arugula, and chimichurri, then top with pickled red onions. Place the top on the sandwich and cut the sandwich in half, then serve.