High heat is usually recommended for cooking carne asada to get a good sear on the outside while keeping the inside juicy. An oven temperature of 450°F (232°C) is often used. Cooking time will depend on the thickness of your steak and your desired level of doneness, but generally, it could take around 12-15 minutes for medium-rare. Always use a meat thermometer to ensure the steak is cooked to your desired level of doneness (135°F for medium-rare, 145°F for medium). Allow the steak to rest for a few minutes after cooking to let the juices redistribute before slicing.