Yes, you can cook steak in the microwave. While it is technically possible to cook tasty steak in the microwave, it is generally not recommended. Steak is best cooked using dry heat, which helps to brown the outside while keeping the inside juicy. Microwaves work by heating food from the inside out especially when most fo the moisture is inside, which can result in a steak that is tough and dry on the outside and raw in the middle. Additionally, microwaves can cause the meat to become rubbery and may even cause it to explode if not cooked properly. For these reasons, it is usually best to avoid cooking microwave steak and instead opt for traditional methods such as grilling or pan-frying. Sirloin steak is way too precious to cook in the microwave.