How do you prepare canned mushrooms?

It depends on what you are cooking them for. If you are cooking for a steak, you should drain them and fry them in oil or butter. After they are starting to brown, add onion and fry for 5 minutes. Add bbq sauce and simmer for another 5 minutes and you are ready to go.

If you are cooking for pasta such as fettuccine, again, drain them and fry them in oil or butter. as they brown, use a flipper or something with a sharp edge to chop them into smaller pieces so they blend with the pasta sauce better. Just before serving, add some dried oregano to taste.