Yes, you can. King oyster mushrooms are the largest species of oyster mushrooms, so you will probably need to fry them longer. Just check whether they are tender enough before removing them all from heat. You don’t need to cut the stems of these mushrooms, just trimming off the very end of their stem is enough. The best thing about king oyster mushrooms is that they don’t lose their shape when cooked, so they have a nice and tempting look.