First, prepare your chimichurri sauce (recipe in blog). After, season the skirt steaks with salt and pepper. Place them in a bowl and pour the chimichurri sauce on them, coating the skirt steaks with the sauce. Save some chimichurri to dress the tacos later. Allow to marinate (the longer the better).
Heat your air fryer to 375F and then place the skirt steaks inside for about 8-10 minutes, flipping half-way. (If you want it rare allow it to cook for about 8 minutes, if you want it medium-well, go for 10).
While the steaks are in the air fryer, heat a pan over medium-high heat. When hot, add the cherry tomatoes and red onions and sauté for about 5 minutes, until the tomatoes start to wrinkle, and the onions become soft. During this time, heat up your tortillas as directed.
Once the steak is done, remove and cut into slices. Build your tacos by placing the sliced steak first and dressing it with the sautéed cherry tomatoes, red onions, and the remaining chimichurri sauce.
ENJOY!