There was some flank steak clearing at Walmart the other day and I decided to try cooking it. Daughter L thought it would go perfectly with some chimichurri sauce so she set about making some. I scored the meat and I had a grill pan, so I cooked the first steak for 5 minutes per side. It came out medium, so I think between 3 to 5 minutes per side is all this less tender cut will take, depending on how you like yours.